The lightweight bats give youth players the to swing their bats fast. Also, the two-piece bats are designed to reduce vibration and stings. But, instead, that, on average, those who swung a 33/30 thought it was a bit much. The right sized bat for a 7-year-old player appears to circle the 27/17. Extend the bat forward and if your arm can reach the barrel, the bat is an appropriate length. BBCOR is the standard for governing adult baseball: high school and collegiate baseball. Age 16 and Above: In the last, here is the bat weight for the adult players. Age Group 15-16 and Above: Finally, the adult group is here. Best Bat for 9 Year Old (Runner Up) USA 2022 Easton ADV 360 $350 Original Price Amazon Buy Used from SidelineSwap Our passion is to help baseball players maximize their potential. Also, you shouldnt pick too short which will decrease your plate coverage. A 510 player at 151 should swing a 33-inch bat. Age 7: The perfect weight for the bat would be 14 to 15 ounces if the player weighs under 60 pounds to 70 pounds. By this formula, a 46 player who sees an average pitch speed of 50mph should use a bat that weighs 22.653 ounces. Also, you can say, wing weight is the state of how particular the actual weight of the bat is distributed across the entire bat. The 2021 Demarini CF is the same as the 2019 and 2020 version of the bat, so still suffers from durability issuesalthough much less than the CF from 2015 to 2017. For 2021 most of the bats are already released. The most essential fact to consider is the materials of the baseball bats. The very tall, as weve seen in nearly every young bat size chart, still tend towards shorter and lighter bats. A taller player doesnt prefer a heavy bat. For an 11-year-old, consider a drop bat ratio of -7 to -8. There is plenty to notice in the 13-Year-Old bat sizing space. Our survey of over 75 15-year-old BBCOR players is broken down by height, weight, strength, and skill as well as bat size popularity and how happy the players are with their choice. Arizona University has done a study on the right bat weight based on the batters height, and the pitching speed of the ball that the batters face. However, parents should choose a 29-inch bat if he is the same height as the child but weighs between 101 and 140 pounds. Click here to read more. For example, a 91 to 100 pound player that is the 46 should swing between a 30-inch drop 12 and drop 11. But, we did not find any who were swinging a 32-inch bat. The most perfect bat length for an 11-year-old is a 30-inch bat along with 20 ounces of weight. Our baseball bat experts made some bat size charts after extensive research. If you are not quite sure what size bat to get, then go with the 29/19 and get to hit. But, considering many of the non-BBCOR counterparts we document above prefer a 23 or 24-ounce bat, youd think more would be excited for a 26-ounce in BBCOR. For the budget-conscious, our hitters like the 2019 Easton Beast Speed in USA and the 2019 or 2020 Louisville Slugger Solo drop 11. Related: So, this ensures durability and lighter swing weight. For the USSSA bats and USSSA bats, a 14-year-old youngster could go for different weight distribution. Best Budget Bat for 11U 2020 Louisville Slugger Omaha Although a couple years old, we can still find several 2018 Slugger Omaha's for really good discounts. That said, we think the best USSSA for a 10-year-old is the Marucci CAT 9 Connect; the best USA Bat for a 10-year-old is the Easton ADV Drop 11; the best fastpitch bat for a 10-year-old is the LXT drop 11. the drop weight is mentioned with a minus sign before the number. On the other hand, 29/18 bats have also used the batters in this age range which seems a little heavy bat. We found that different physical metrics are not good indicators of the right-sized bat for a 10-year-old. The average 15-year-old swings a 32/29 BBCOR baseball bat. By the way, as there are a bunch of options available for the 8-year-old players, the safest one would be the 28/18, the survey shows. The taper helps to generate the power dynamically with the bat. Oh! Mostly because the BBCOR world only uses drop threes. 20-ounce bats for 9-year-olds tended to be too heavy. So, if you look for a new bat for youth leagues with more trampoline effect and larger barrel size, USSSA bats are for you. If your player stands 46 and weighs between 91 and 100 pounds, then the chart suggests a 30-inch bat. That said, we are also surprised to see that most 13-year-old BBCOR players swing 31-inch or 32-inch players than 30-inch players. Find out more on Illegal Baseball Bats Models and Methods. We suggest you find the variable or two which describes you best and go for the in the middle. Weak kids swing lighter bats (no surprise), but, again, very tall kids swing shorter bats (no idea why that keeps being the trend). Note, too, that 13-ounce bats found in the T Ball space. Age 14: The age range 14 is one of the most crucial points for baseball players. Where BBCOR is fixed with the bat drop weight of -3, the USA bats have broad acceptability here. When in doubt, we suggest a 29/19 regardless of the players 10-year-old sizeas those are poor determinates for the correctly sized bat, as weve proved in our data collection. Tall players rarely swing more significant bats when compared to the average and short. We are not quite sure why this is, but the data is so prevalent in each age set that it is impossible to ignore. But when the age ranges from 8 to 9, a bat length of 26 inches to 29 inches is preferable. Baseball Monkey and Baseballmonkey.com are operated by and are trademarks of MonkeySports, Inc. The drop is the numerical difference between the length of the bat in inches and the weight in ounces. Although not cheap, we think it the best bat for the 10-year-old, and wed buy it before we bought the DeMarini CF due to the CFs durability issues and its higher price point. Barrel Size. But when your kids or you exceed the age range of 14, the bat length also should be reached 31 to 34 inches. For a heavier player, 34 inches bats could be picked. I believe in the support of other baseball bloggers like me to spread the passion. That is, BBCOR bats come only come in a 34, 33, 32, 31, 30, and 29-inch options. Hybrid bats are more cost-effective than composite bats but provide the feature of composite bats. Learn More. For young players, the right bat can make a huge difference. There is no restriction on the drop weight of the bat by the USA regulatory authority. Notice, too, many bat size charts dont offer a weight suggestionjust a length. Instead, we are left to consider the stated weight of the bat, which is often inaccurate from the actual weightneither of which would give you the swing weight. The drop is the numerical difference between the length of the bat in inches and the weight in ounces. So, the popularity serial of the bat sizes by 10-year-old youngsters are. I hope this will be a great solution to picking the perfect bat with the right bat size. But, the bat sizing will change to 31 inches, when the same lengthened players go over 90 pounds, up to 150 pounds. As such, for example, a 30/27 BBCOR bat of any particular bat model may not have the same total weight as another 30/27 BBCOR. The grip also provides comfort as they are made of soft materials. The same weight, but distributed differently brings different swing weights for the same weight. But, there are at least a few swinging a 30/20 and even fewer in the 31/21 range. 30"-31" 13-14 years old . Even if the two bats did have the same total weight, they might not have the same swing weight. About just as many use a 33-inch BBCOR than a 30-inch. In most cases, this metal is aluminum. Rather, the age of players is the most indicative entity in choosing the right-sized bat for comfort. My name is David, I am an editor/co-founder of www.theplanetofbaseball.com. 29 and 30-inch bats in the 18 to 20-ounce weight range make up more than 90% of total 10U bat usage. The more the drop weight, the lighter the bat is. The 1st 13-year-old row are youth bat size recommendations. As they are getting older, using longer bats is recommended. Also, drop weight 10 is on the other hand the most popular drop weight among the bat length. Of some note, no 14-year-old we surveyed has begun swinging a 34-inch bat just. Do not use them against live pitching or a machine. Notice, as well, that tall players still tend to swing short bats. Basically, a pivot point along with the mass moment of the inertia is considered to determine the swing weight of the baseball. 81 to 90 pounded man should go for 17 ounces bat. As we observe in other age-specific bat charts, very tall players tend to avoid heavier bats. New technology over the years has provided new ways to make baseball bats better, and currently there are three standards for baseball bat construction. Alloy bats tend is started back in the 1970s when the Worth company first brought them on the market. But you see, this bat will not feel the same even having the same total weight. But, in the end, some may find a drop weight of -5 alluring to swing as well as with more weight. It is a marked contrast to, say, the 17-year-old population that coalesces around just a few different bats. Ok, if so, keep your hypertension away, and let us help you. Aside from the wood bats, alloy and composite materials are used to make metal bats. As the barrel of hybrid bats is mostly made of aluminum, they are ready to play out of the box. Inside the chart, there are two ways to slice it. So, make sure, your bat rolling machine doesnt violate the rules and changes the shape of the bats. Based on the data we collected, about 1/3 of all 13-year-olds still play in non-BBCOR leagues. Among these, the metal bats must be batted ball coefficient of restitution in high school and collegiate baseball. However, we did find, on average, the 33/30 rated as a bit too heavy for enough players to move into the little too heavy category. Youth sizing standards allow for greater bat drop of lighter bats. Take the shot if you can steadily grasp the bats barrel. And, youth leagues are governed by USA Baseball and USSSA baseball which allows lighter bats with more drop weight than -3. Yet, in bewildering fashion, the general public doesnt have access to swing weights. The Right Size Bat. For BBCOR bats, the answer is more evident because BBCOR bats are required to be a drop 3. The right size maximizes the chance of success, regardless of brand. Aside from this, the weight range of the bat varies from 19 ounces to 21 ounces. In its specifics, it is noteworthy. The right bat size is more important than the right bat model. There were too few 32.5 and 33.5 responses to make the data meaningful, so we removed them and showed you the whole numbers, as it were, below. The right bat drop for a 12-year-old varies a lot among actual users. Aside from this, the drop weight should be increased a little. The length is measured in inches from its knob to the end. By the way, a wooden baseball bat gives the following advantages to a batter. The players who exceed the height of 55, should prefer bats ranging from 30 inches to 34 inches. You can see more information in our best bat for 13U. After measuring the right size, you may have another confusion about which BBCOR would the best. No artificial or machine power. Composite bats are designed in such a way that allows controlling the swing weight. Bats without enough swing weight will wring the hands more often and wont produce enough power to be useful. Most of the non-BBCOR 13-year-old buddies think their bats are more lightweight than they expect. 30-inch bats in a 19 to 21-ounce weight range make up more than 40% of total 11U bat usage. Find more details on our, a study by some physics folks at the University of Arizona, RawGraphs to generate much of the structure, bat model specifics in the 13-year-old space here, an entire article dedicated to that conversation. Smaller players with less strength should consider a lighter bat to generate a quicker swing. Fixing Common Backhand Mistakes | Tips on Coaching Youth Baseball #3, Active Catch Routine | Tips on Coaching Youth Baseball #2, Quick Win for Fielding | Tips on Coaching Youth Baseball #1, Baseball Tryout Tips | #1 biggest tip from MLB Pro Scout, Best Amazon Prime Day Deals for BASEBALL 2022, Former MN Twin shares Quick Tip to be a better hitter (Video). The other study, aside from ours that used empirical data to determine the right bat size was a study by some physics folks at the University of Arizona. Age 10: Players weigh under 60 to 70 pounds, bat weight, 17 ounces, player weigh 71 to 100 pounds should go for 18 ounces bats. For the 2021 season, we think the best new bats for a 10-year-old, regardless of price, are the drop 10 USSSA Marucci CAT 9 Connect in a 30/20 or 29/19 and the Easton ADV 360 drop 11 in a 30/19. Weighs over 130 should go for the 30-inch bat. If you are going to pick a softball bat for your 7-year-old kid, you should go for 24 inches to 26 inches bats. We asked about the players height, weight, skill level, and strength concerning their peers. Its true, you tend to get what you paid for, and more expensive alloys should provide better performance. But the 29/19 and 28/17 are a little too heavy for the age of 7. Hybrid bats. As well, much like the 10-year-old group, players are generally happy with their bat. We do have an article that discusses bat model specifics in the 13-year-old space here. There are things to consider out of the box too. (There are a few companies that use a 32.5 and 33.5 model as well). See, can you comfortably reach the knob? End caps balance the barrels swing weight as well as help control the bat. Of some interest, players whose parents consider them short tended to avoid 18-ounce bats in the 8-year-old space. Before going into the topic, lets first talk about baseball bat anatomy. Our data collected about 100 of these individuals and, as you can see in the charts above, the bats tend to run a little light for most. But without a weight suggestion, a recommendation of a bat length is not entirely useful. Ash is the second most popular wood bat. But, there are plenty still finding the right sized fit. There are no powerful players that want a 32-inch, and very light players only want a 32-inch. Find more details on our, The right bat size for an 8-year-old, as determined by actual usage, is a 28-inch length and 18-ounce bat. This type had been banned a long time ago, but can now be used as long as the bat has a BBCOR certification. First, we surveyed thousands of real players to see what bat size they used. Fortunately, for baseball bats, its safe to say that price isnt the deciding factor. In full disclosure, we also own the site called BatSizeChart.com. Actually, how is it important so I needed to mention this at such a time? Players who are longer than 59, up to 6, need to be less confused about choosing baseball or softball bats. By the way, the main perspective of BBCOR regulation is to bring the metal bats performance near to wood bats. But, ultimately, it is a formula to derive the optimal bat size that should deliver the optimal amount of power. But, the 29/17 option is lighter for the batters who use this size. It is the ratio of length to weight. By the way, 30/20 seems the most popular one. At this age, baseball players play in both youth league and high school baseball. But, 30/20 is a little heavier, whereas 27/17 is a little lighter for them. The difference in length between the length and weight of a bat is referred to as its drop. (We still do not quite understand why, but it is so). Now, the height of 39 to 4 would need some shuffles. So, if you pick a poor bat with the right size, it will not serve you a lot. If you jumped to this section of the article, you might like to know that we surveyed thousands of baseball players. As well, there does not appear to be any particular theme other than a general coalescence around the 29/19 and 28/18 sized bats. The variable of age (not height or weight) tend to be the most indicative of the right bat size. The second most popular option is 32 inches bats along with a bat weight of 22 ounces and drop weight of -10. They are as follows. Selecting the baseball bat size depends on several factors. Most leagues allow all three types, but youth leagues often limit wood bats. We do notice that excellent 9-year-old players tend towards the 20-ounce baseball bat and that weak players avoid anything more than an 18-ounce bat. Now turn the imaginary sledgehammer around and swing by holding on the handle. The most popular bat size among the age of 10 is 29/19 and 30/20, where the drop weight is 10. If you are between 14 and 16, you should use a bat with a -10 weight drop. The chart data is found in several formats and color schemes on many sites. See more details in the image below. In the world of baseball, an adult is considered someone who is at least 13 years of age. For example, aluminum bats are perfect for younger players that are only starting their baseball career, even though they are cheaper than composite bats. The weight of the bat should depend on the player's skill level, strength, and league official regulations. In terms of frequency, there is a massive range of bat sizes in the non-BBCOR 13-year-old bat space. By the way, more than 200 parents answered the questions about the bat size of their particular 11-year-old baseball players. The store will not work correctly in the case when cookies are disabled. Excellent players swing a 31-inch way more than 32-inch and way more often than their average skill peers who tend to swing a 32-inch more often. There is too much information observed in the chart to comment on here. We also removed the 32.5 and 33.5 length options, although we did have them in our survey. By the way, there is a smart number of 31 inches bats are also picked. So, players in this age group better go for a minimum of -12 to -13.5 bat drop weight. You can utilize your own muscle power instead of depending on the bat. The baseball players who are under 60 pounds, up to 70 pounds, a 15-ounce bat is recommended. Sizes: 28, 29, 30, 31, 32 Barrel Size: 2 5/8 Drop: 10 Swing Weight: Mid Serial Number: YBB22ADV10 Original Price: $350 Release Month: October 2021 1. . That is, 29-inches in length and 19-ounces or a 30-inch length in 20-ounce. If youre not sure, we suggest you go with an 18 or 17-ounce bat. But, as weve observed elsewhere, most athletes believe themselves to be shorter than averagenot taller than average. If he can make it for 20 seconds without his bat dropping or the arm shaking, there is a good chance you've found the best baseball bat for that player. The USSSA bats must meet the following standards. But, according to the JustBats chart, they need a 32-inch bat. We discuss more details of the chart with specific bat suggestions in our best bat for the 12-year-old section. 8-year-old players with average weight split pretty evenly across the 18, 19, and 20-ounce bat weight but tend to prefer the 29 and 28-inch over the 30. Many use a drop 11 in a 30 inch (upping the number of 19-ounce bats in 8-year-olds hands). It is usually subtracted from the bat length to obtain the weight. A poorly fitted bat is the death of a promising hitting season. In the simplest state, the swing weight of the at refers to the power that it takes to swing the bat. We asked 100 parents of 7-year-old players about the right size bat for their player. We promise not to ever let commission or anything else sway us from giving a 100% honest reviews of baseball gear. However. Like in all other categories, parents tended to believe their child was above average skill, shorter than everyone else, and stronger than most. By the way, parents who think their kids are short, prefer 18 ounces bats. The 17-year-old category got a huge survey among thousands of BBCOR baseball players. The higher the bat drop number is, the lighter your baseball bat weight will be. If youre looking for the best BBCOR bat for a 16-year-old, we suggest you check out our best BBCOR bats article. Ash, maple, hickory, and bamboo are used to make wooden bats. Use this measurement to start finding the proper baseball bat length. The range of typical bat sizes is as big as the range in 12-year-old baseball body types. Age 9: At the age of 9, the youngster should choose a bat weighing 16 ounces if he is under 80 pounds. While the players are likely the most comfortable with this size bat since they swung it last year, we think it smart to find a drop 8 in a 31 or 30-inch for any given 12 years old and encourage our players to do so. Let's take a closer look at each of these factors to help you choose the right bat for your 10 year old. The bat drop should be between -8 and -10, with a balanced swing weight for better bat control and speed. A Complete Guide to the Different Types of Baseball Gloves. That said, a 12-year-old player who cant hit the ball because his bat is too heavy doesnt end up playing high school baseball that often anyways. We asked over 200 parents of 10-year-old players and found those two were the favorites by far. 3. The bat length reaches 33 inches, while the same lengthened players have more weight than 120 pounds, and exceed 180 pounds of weight. Also, not every product pays us a commission, but if we like it, we still recommend it. Because there is no particular right bat size that could dominate the popularity all along in this age group. The amount of $$$ you spend on a bat needs to correlate with the number of games played. "Drop 10 USSSA users are looking for a balanced model that gives them the best chance to succeed at their level of play," Stevens said. There is also a sizable range in weights (from 13 to 19 ounces). At this age level, players normally play in collegiate baseball and above. Possibly, a tall kids parents dont see the need for a longer bat. Composite bats outperform all-aluminum bats in terms of the trampoline effect by keeping the value under the predetermined range. facing forward, stance. 31 and 32 inches hold more than 90% of popularity among the 13 -year-old BBCOr players. What drop bat should an 11-year-old use? Over 200 parents of players with 11-year-olds answered our bat size chart survey. Marucci states, as I have already mentioned before, that there are many variables and entities that impact choosing the right baseball bat size. So, a batter aged 16 or above must not use a bat weighing more than 33 ounces. The trampoline effect is the phenomenon of when baseball comes out off the bat while contacting. Wood bats are less-prices. Marucci basically prefers the bat size based on the batters height. If youre arent quite sure which bat to get, then wed say lean towards to the 32-inch so it might last you through your 14 year season too. Heres is our data, organized by baseball and fastpitch as well as league, age, and relative size. There are plenty of happy 32/22, 30/22, 31/23, and 32/24 12-year-old hitters. Generally speaking, for the average 10-year-old, wed recommend a 30-inch big barrel bat with a drop 8, 9, or 10. The 2nd most popular 9-year-old bat is a 29/19, of which 24.5% use. Like us, youve likely concluded that bat size charts are, at best, guesswork. There are more using a 28/18 than a 26/16, but its close. USSSA bat certification covers bats designed for and used in travel play among youth leagues. In terms of the best size for a 17-year-old, wed suggest going with your gut as you would know best at this point in your career. I call you for easiness, you will see a little difference in picking the size of a baseball bat and softball bat in length. Lets find out the facts about the drop weight or bat drop. Most 13-year-old non-BBCOR players think their bat is too light. That data drives our list of best bats for 10-year-olds. We also show you how to calculate your own on this YouTube video. But, there are more other sizes than those two combined. While the players are likely the most comfortable with this size bat since they swung it last year, we think it smart to find a drop 8 in a 31 or 30-inch for any given 12 years old and encourage our players to do so. A child under 60 pounds should use a ba between 26 and 29 inches long. Now that youve learned how to pick the right bat size, its time to explore the best brands available at BaseballMonkey. Players 11-12 years old will often use a -8 weight drop, and 13-year-old players often use a -5 weight drop to help them prepare for the transition to BBCOR play. Instead, they put you on the right path by giving you a rough feel for where a lot of players of a particular height are, then telling you to go try some out and see what works for you. The larger the drop weight, the lighter the bat For example, a bat with a -13 drop weight is lighter than a bat with a -10 drop weight. As you see, the age range of 12 years is tried to test all recommended bat lengths along with all possible drop weights they should swing with. 28"-29" 11-12 years old . And he faces a 70mph pitching speed on average. Experts in the industry have made many baseball charts depending on the attributes and entities. The max length of a BBCOR bat could be 36 inches. You can locate this derivative chart here (and other places too). Shopping for baseball bats has become more complicated over the years due to advances in materials and technology, as well as the varying rules for different divisions and age groups. Though the number of players who swing 34 inches bats is a little, they are happy when swinging them. The results for the 8-year-olds are in this bat size diagram. In fact, from the 100 surveys, we collected on 14-year-old BBCOR players the ones considered tall were the ONLY ones that made up the 30 inch bat space. But, this seems a little heavy on the other hand. The second is the age vs. weight. Age Group 5 to 7: The players of age range from 5-year-old to 7-year-old, should swing a bat between 24 inches to 26 inches. It was an inexpensive single-piece aluminum bat that was super light and short and therefore easy to control. Composite bats(generally the most expensive) are made of a composite of fiberglass-like material. Note, for this data. Some kids might want a bat that is a little longer or heavier than the average version. So, the bat choice for the two leagues will be different expectedly. Youth league baseball players basically use lighter baseball bats that could be weighted -5, -8, -10, -12, -13, and -13.5. Professional baseball players & coaches donate their knowledge. To find out who has contributed to this website, check out our Pro Contributors page, Sign up for the 5 Point Power Booster videos here Get the free videos. We aggregated that data into a chart that focused on skill level, player strength, height, and weight compared to their peers. Also, hybrid bats are significantly durable. A 510 player that sees 75mph on average should use a bat that weighs 29.995 ounces. Players weigh 121 to 150 pounds, a bat is recommended 19 ounces, and a player who weighs 151 to 160 should have a check on a 20-ounce bat. Players under the age of 12 are advised to use a 2 1/4" barrel. You can skip the theoretical things when you have natural options to select. The latter ones provide a little more flex in the handle, which can help the speed, while one piece bat lovers claim that they have a better trampoline effect. That is rational thinking, and we support the idea. With so many bats to choose from, it can be hard to know which one is best. Meaning, if anything else, there are at least a few 29-inch drop 9 users out there. Quality and sizing are not the same facts. Weve found the confidence in this bat gives 10-year-olds a real chance to go after the ball, and, sometimes, that confidence is all they need. Wed recommend if you are an excellent or big player to keep the bat size in the 29/19 range and stay away from 20-ounce bats until youre 10. For example, Strong players are just as likely to swing a 29-ounce bat as they are a 30-ounce bat (with maybe a little bit of a trend towards the 30-ounce). We most likely earn a comission from companies we link to on this site. In fact, when weve gone head to head with the USA ADV 360 drop 11 and USSSA bats, most hitters cant tell the difference. Coachs Guide, 12 Best Softball Pitching Machine 2023| Pitching Machines That Beat The Rest, Illegal Baseball Bats Models and Methods, Why is Baseball So Boring (Six Undeniable Reasons and Solutions). A player with the age of 15 can start with a 27 ounces bat. In terms of sizing, we say stick with a 33/30 as a 16-year-old if youre not sure where you land. The real story was bat control. The fact it comes in a drop 10 29/19 and 30/20 is ideal for that 10-year-old space. Bat Digest is one of the trustworthy baseball expert sites that gathered data on baseball bats based on several factors. By doing this, the batters bat speed will be balanced. 28 and 29-inch bats in an 18 to 20-ounce weight range make up more than 80% of total 9U bat usage. There are a lot of options for 12-year-old guys. Composite materials, on the other hand, give the ultimate advantage to doing the weight distributed properly across the bats. We found that, for most, the 30/20 is too heavy a bat, and players rated it too heavy for the 9U market. The right bat size for an 8-year-old, as determined by actual usage, is a 28-inch length and 18-ounce bat. So, there is a significant variation in choosing the bat endeavor. Honest Baseball is a participant in the Amazon Services LLC Associates Program, A Detailed Guide, Is There a 10 Run Rule in College Baseball? Only the more significant drop 8 s, as well as the drop 5s, appear to appease the growing muscles of 13-year-old baseball players. Also, the bat length is fixed among the 29, 30, 31, 32, 32.5, 33, 33.5, and 34. On the other hand, another total of 40% of players uses 29 and 31 inches baseball bats within the same total weight categories. Age 15: The players who are in the age of 15, have some variations too. Some local leagues may have varying baseball bat length guides, but most leagues adhere to the following standards for youth baseball bat sizing.