Derek Diamond
Pitching scouting report · 80Grade
Scouting summary
Diamond's realistic path is as a middle or shuttle reliever who can reach the majors if the 2026 fastball rebound holds and his slider remains a reliable finishing pitch. His ceiling is a useful multi-inning or middle-relief option with average control and a four-pitch mix, but the prior velocity loss, 2025 injury absence, and modest career minor-league performance create meaningful risk. He does not presently have enough verified evidence for a starter projection, especially after working mainly in relief and showing only intermittent upper-level success. Maintaining the 93-97 mph version of the fastball, sharpening the slider, and proving durability are the key development requirements.
Projected MLB role: up-down reliever
- Position: P
- Bats: R
- Throws: R
- Height: 74 in
- Weight: 210 lb
- Born: 2001-01-04
- 80Grade overall rank: #731
- 80Grade team rank: #38
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Frequently asked questions
What position does Derek Diamond play?
Derek Diamond plays P.
Is Derek Diamond a left-handed or right-handed player?
Derek Diamond bats R and throws R.
Where does Derek Diamond rank as a prospect?
Derek Diamond is ranked No. 731 on 80Grade's consolidated prospect rankings.