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Kevin Defrank
- FCL Marlins - Rk
- RHP
Collapse Explore Scouting Report
- Bats: R / Throws: R
- Age: 17
- Rule 5 Eligible: After 2029 Season
- Acquisition Method: International Signing
Scouting Report
Signed via international free agency ($560k signing bonus)
May 2026 update: Defrank received the second-largest signing bonus in the 2025 Marlins international signing class and the consensus is that they got him at a bargain rate anyway.
Defrank's arsenal consists of a four-seam fastball, sweeper and changeup. The fastball typically sits 98-100 mph, while his secondaries have the potential to develop into above-average pitches.
Defrank is an imposing presence on the mound, already having filled out his 6'5" frame as a 17-year-old. He creates deception in his delivery by sinking deep into his back leg, hiding the ball behind his right hip.
He is the youngest player on the 2026 FCL Marlins Opening Day roster.
Four-seam fastball
Changeup
Slider
FOF Top 30 history
- January 2025: #14
- March 2025: #16
- May 2025: #15
- June 2025: #14
- August 2025: #6
- September 2025: #6
- October 2026: #5
- January 2026: #6
- April 2026: #4
Monthly Splits
| Split | Team | W | L | ERA | G | GS | CG | SHO | SV | SVO | IP | H | R | ER | HR | HB | BB | IBB | SO | AVG | WHIP | GO/AO |
|---|
| Season | Team | LG | Level | W | L | ERA | G | GS | CG | SHO | HLD | SV | SVO | IP | H | R | ER | HR | NP | HB | BB | IBB | SO | AVG | WHIP | GO/AO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | D-MIA | DSL | ROK | 0 | 1 | 3.19 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 31.0 | 30 | 15 | 11 | 1 | 512 | 9 | 10 | 0 | 34 | .250 | 1.29 | 1.52 |
| Date | Team | OPP | W | L | ERA | G | GS | CG | SHO | SV | SVO | IP | H | R | ER | HR | HB | BB | IBB | SO | AVG | WHIP | GO/AO |
|---|
See all » Kevin Defrank Articles
Tracking Miami Marlins injury, rehab updates
Fish On First Top 30 history
Top 30 prospects: Updated Marlins list includes 6 trade acquisitions
See all » Kevin Defrank Videos
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