Keyner Martinez
Pitching scouting report · 80Grade
Scouting summary
Martinez has the stuff to remain a legitimate starting-pitching development project, with a mid-90s fastball and sweeping low-80s slider that can miss bats when he is ahead. The likely path is continued refinement of his changeup and strike throwing while learning to preserve his delivery and pitch quality across a larger workload. His 2025 performance established a strong baseline, but the 2026 decline in run prevention and increase in walks and homers reduce confidence in a higher-end rotation outcome. If the changeup reaches average and the command settles near average, he can compete for a back-end rotation job; otherwise, a two-pitch relief role is the safer fallback.
Projected MLB role: up-down #5 starter
- Position: P
- Bats: R
- Throws: R
- Height: 73 in
- Weight: 165 lb
- Born: 2004-08-16
- 80Grade overall rank: #723
- 80Grade team rank: #22
Frequently asked questions
What position does Keyner Martinez play?
Keyner Martinez plays P.
Is Keyner Martinez a left-handed or right-handed player?
Keyner Martinez bats R and throws R.
Where does Keyner Martinez rank as a prospect?
Keyner Martinez is ranked No. 723 on 80Grade's consolidated prospect rankings.