2023 Marucci CAT X
The Short Answer
The Marucci CAT X BBCOR is legal where BBCOR is required or accepted: high school, college, USSSA (all ages), and Little League Intermediate, Junior, and Senior. It is not legal in Little League Majors and below, which require the USA Baseball stamp.
Specifications
- Sport: baseball
- Material: alloy, one-piece
- Barrel diameter: 2.625 inches
- Drop options: -3
- Lengths: 29 to 34 inches
- Certifications carried: BBCOR
League by league legality
| League and division | Verdict | Notes |
|---|---|---|
| USSSA 8U-12U | Legal | |
| USSSA 13U | Legal | |
| USSSA 14U | Legal | |
| USSSA 15U-18U (Scholastic) | Legal | |
| Little League Majors and below | Not legal | Requires USA-BASEBALL; this bat does not carry an approved matching certification. |
| Little League Intermediate (50/70) and Junior | Legal | |
| Little League Senior League | Legal | |
| NFHS (High School) High School | Legal | |
| NCAA College | Legal |
Verdicts use the certifications listed above and published league rules. Local leagues and events can be stricter. Last checked September 25, 2026. To check one division, use the Bat Legality Checker.
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The CAT X is a one piece alloy BBCOR bat at the fixed drop 3 that every BBCOR bat carries. Model MCBCX was on the WSU Sports Science Lab certified list when we checked in September 2026, in lengths from 29 to 34 inches, including 32.5 and 33.5. The list does not show a model year, so match the model number on the bat rather than the year on a listing.
For most families the legality question is about the division, not the bat. A player moving into USSSA 14U, high school, or Little League Intermediate can use it. A player in Little League Majors or below cannot, however good the stamp looks.
Because every BBCOR bat is drop 3, length is the weight decision: a 32 inch weighs about 29 ounces and a 33 inch about 30. Most first year high school players land on 31 or 32 inches. As an alloy, the CAT X needs no break in and handles cold spring games better than a composite, though one piece alloys usually sting more on mishits than two piece bats.
The Bottom Line
A one piece alloy BBCOR bat, legal from USSSA 14U through college. Not for Little League Majors and below.
Related
Check this bat against your exact division with the Bat Legality Checker, see your division's full rules in the League Bat Rules Finder, or size your player with the Bat Sizing Calculator. Browse all models in the bat database.
Frequently Asked Questions
Yes. It carries the BBCOR .50 mark NFHS requires, and model MCBCX was on the WSU certified list as of September 2026. The bat must also be undamaged and unaltered.
Not in Majors or below, which require the USA Baseball stamp. BBCOR becomes legal in Little League from the Intermediate 50/70 division.
Both are legal. Alloy needs no break in and handles cold better. Composites usually sting less on mishits but need a break in period and should stay out of cold games. Pick the length your player can swing quickly first.
Last reviewed: September 25, 2026