For bat brands
Your bat, swung by the kids it’s made for.
SizeUp Bats tests BBCOR bats with real players ages 12–14, grouped by height, as they make the jump to BBCOR. Send us a demo bat and we’ll show families exactly which players it fits.
Where we are now
Season 1 testing is underway, and it covers the switch to BBCOR at 14U. Since January 1, 2026, national USSSA 14U events have required BBCOR (-3) or wood bats. The biggest data-driven bat tester rates BBCOR bats with high school and college players, so families making the jump at 12–14 have little test data from players their size.
We test 2027 BBCOR bats with players 12–14, plus a few -5 and -8 travel-ball bats to show what the step up costs in bat speed.
[Update this line as you go, e.g. “Our first videos go live in December.”]
What happens to your bat
1
Measured
We weigh it against the label, find the balance point, measure swing weight and film the certification stamp.
2
Swung
Players in four height groups each take 10 recorded swings. A sensor records bat speed and a radar records ball speed.
3
Rated
Each player rates feel, sting and sound before seeing any numbers. The bat gets a Kid-Tested Score and a best-fit size group.
4
Published
A YouTube review, short clips and a results page, followed by durability check-ins at 30, 60 and 90 days.
What you get
- Honest results by size group: which kids your bat works best for.
- A YouTube review plus short clips for Shorts.
- A results page on our site, written for parents searching for the right bat.
- Your bat’s raw swing data, shared once the review is live.
- Durability updates after 30, 60 and 90 days of use.
What we need
One demo bat per model, ideally in these lengths so every size group can swing it:
| Length | Size groups |
|---|---|
| 31 in. | A and B: up to 5′4″ |
| 32 in. | B and C: 5′1″ to 5′8″ |
| 33 in. | C and D: 5′5″ and up |
Season 1 is BBCOR (-3). We also test -5 and -8 travel-ball versions of a few bats to show the step up. USA Baseball youth bats are welcome for Season 2 (ages 7–12).
How we handle demo bats
- Every review says the bat was sent free by the brand.
- Brands don’t see a review before it goes live, and a free bat never changes a score.
- Testers appear by first name only, with written permission from a parent.
- Want the bat back after the 90-day durability check? Tell us when you send it.
Who’s behind SizeUp Bats
SizeUp Bats is run by Landon, a 13-year-old ballplayer. He started it after his family spent a lot of money on bats that weren’t the right fit for him, including a tough switch to BBCOR at 14U. He does the testing, filming and reviews. His mom handles agreements, shipping and anything that needs an adult’s signature.
Send us a demo bat
Email us with your brand, the models and the lengths you can send. We’ll reply with a shipping address and when your bat will be tested.
Or write to hello@sizeupbats.com.