Shop by Bat Certification
687 Results
![Used 2021 Marucci CAT9 Composite (31") USSSA Certified Baseball Bat - 21 oz (-10)](https://edge.images.sidelineswap.com/production/062/483/259/731b9dfcee3cba3e_original.jpeg?height=500&optimize=high)
Rebound_Sports
Used 2021 Marucci CAT9 Composite (31") USSSA Certified Baseball Bat - 21 oz (-10)
$52
Retail price: $349![New Rawlings 5150 USSSA -10 Baseball Bat 31" - 21 oz.](https://edge.images.sidelineswap.com/production/060/629/223/cf4b25345e8202e4_original.jpeg?height=500&optimize=high)
sfssports
![Used 2021 Louisville Slugger Meta (31") USSSA Certified Composite Baseball Bat - 21 oz (-10)](https://edge.images.sidelineswap.com/production/061/542/389/029df4a9b6b436a1_original.jpeg?height=500&optimize=high)
Rebound_Sports
![Easton YB14X1 Baseball Bat 31" 21 oz. (-10) 2 1/4"](https://edge.images.sidelineswap.com/production/075/216/647/3221aa775f4870af_original.jpeg?height=500&optimize=high)
Gear4Good
![Axe L143H Baseball Bat 31" 21 oz. (-10) 2 3/4"](https://edge.images.sidelineswap.com/production/074/343/000/d7d3b92178954fc1_original.jpeg?height=500&optimize=high)
Gear4Good
![Easton Mako Baseball Bat 31" 21 oz. (-10) 2 5/8"](https://edge.images.sidelineswap.com/production/077/555/335/593c94498e6086a5_original.jpeg?height=500&optimize=high)
Gear4Good
![2015 Easton Mako XL (31") Composite Baseball Bat - 21 oz (-10) | USSSA Certified](https://edge.images.sidelineswap.com/production/064/456/756/edc8ffc238aa1157_original.jpeg?height=500&optimize=high)
Rebound_Sports
2015 Easton Mako XL (31") Composite Baseball Bat - 21 oz (-10) | USSSA Certified
$90
Retail price: $350![New Demarini The Goods (-10) 2 3/4" USSSA Baseball Bat 31" - 21 oz.](https://edge.images.sidelineswap.com/production/060/630/019/868d6ea65d210499_original.jpeg?height=500&optimize=high)
sfssports
![New 2023 Easton ADV 360 USA Baseball Certified Bat Composite 31" - 21 oz (-10)](https://edge.images.sidelineswap.com/production/068/839/133/441b166291a20903_original.jpeg?height=500&optimize=high)
KleenNHardSport
New 2023 Easton ADV 360 USA Baseball Certified Bat Composite 31" - 21 oz (-10)
$280
Retail price: $350![Louisville Slugger Select USA 31 drop 10 (-10) Baseball Bat 31" 21 oz USABat 31/21](https://edge.images.sidelineswap.com/production/076/450/545/e2303815efd05928_original.jpeg?height=500&optimize=high)
jzmcgowan
Louisville Slugger Select USA 31 drop 10 (-10) Baseball Bat 31" 21 oz USABat 31/21
$79
Retail price: $299![*NEW* Axe Elite One 31" / 21 oz Alloy 2¾″ USSSA Baseball Bat L43J -w/Warranty ►FREE SHIPPING◄](https://edge.images.sidelineswap.com/production/064/422/161/ec92f68159778afe_original.jpeg?height=500&optimize=high)
ProtechProducts
![2025 Easton Hype Fire 31" / 21 oz USSSA Travel Baseball Bat 2¾" Big Barrel ►2-DAY SHIPPING◄](https://edge.images.sidelineswap.com/production/077/627/789/086cc63b23261bc2_original.jpeg?height=500&optimize=high)
ProtechProducts
![*NEW* 2025 DeMarini ZEN USSSA 31" / 21 oz Composite 2¾" Travel Baseball Bat -WBD2532010 ►2-DAY SHIP◄](https://edge.images.sidelineswap.com/production/069/055/648/09be725cfef6bfea_original.jpeg?height=500&optimize=high)
ProtechProducts
![(-10) 21 oz 31" (Used) Tank Bat](https://edge.images.sidelineswap.com/production/077/537/984/be9999065238ab8b_original.jpeg?height=500&optimize=high)
Corrineb
![Used True 21 oz 31" UT20T2X10 Bat](https://edge.images.sidelineswap.com/production/063/198/884/1d9b36be10d5060a_original.jpeg?height=500&optimize=high)
BaseballAmy
![Used DeMarini (-10) 21 oz 31" Bat](https://edge.images.sidelineswap.com/production/038/381/704/64f9e6b7765f0005_original.jpeg?height=500&optimize=high)
Jeffandme2022
![2025 Rawlings Icon 31" / 21 oz USSSA Travel Baseball Bat 2 3/4" Big Barrel ►2-DAY SHIP◄](https://edge.images.sidelineswap.com/production/077/628/198/551ae0be349e2b02_original.jpeg?height=500&optimize=high)
ProtechProducts
2025 Rawlings Icon 31" / 21 oz USSSA Travel Baseball Bat 2 3/4" Big Barrel ►2-DAY SHIP◄
$400
Retail price: $400![Used Marucci (-10) 21 oz 31" AM22 Bat](https://edge.images.sidelineswap.com/production/072/415/911/1cf56738cd1ea815_original.jpeg?height=500&optimize=high)
rkimball3
![Used DeMarini (-10) 21 oz 31" Vexxum Bat](https://edge.images.sidelineswap.com/production/069/671/881/dd7f404423cc7253_original.jpeg?height=500&optimize=high)
CS_Sports
![Used Marucci (-10) 21 oz 31" Hex Bat](https://edge.images.sidelineswap.com/production/061/738/405/51196d59d21b1665_original.jpeg?height=500&optimize=high)
PIASLincolnNE
![Used Louisville Slugger Bat (-10) 21 oz 31"](https://edge.images.sidelineswap.com/production/028/342/121/0a858f464d109d2f_original.jpeg?height=500&optimize=high)
drew2476
![Used DeMarini (-10) 21 oz 31" CF Bat](https://edge.images.sidelineswap.com/production/076/458/661/ec184900eb095172_original.jpeg?height=500&optimize=high)
smit07