AAA · P · Indianapolis Indians (PIT)
Derek Diamond
B/T R/R · 6' 2" · 210 lb · born Ramona, CA, USA · age 25 · draft 2022 rd 6 · played P 36
96 batters faced scored this season His season card →
The card rack
Paid link — as an eBay Partner, FVR earns from qualifying purchases.
FlagshipDerek Diamond [Black] #HG-DD · 2022 Panini Elite Extra Edition Hidden Gems Autographs · 0 recent sales
Live on eBay now · asking, not sold · as of 2026-10-11 · paid links
The rookieDerek Diamond [Black] #HG-DD · 2022 Panini Elite Extra Edition Hidden Gems Autographs · 0 recent sales
Live on eBay now · asking, not sold · as of 2026-10-11 · paid links
Paid link — as an eBay Partner, FVR earns from qualifying purchases. · Flagship = his most-traded card (the market’s reference); the rookie = the top card of his first card year. As of October 11, 2026 · trend is FVR's own nightly archive · prices via SportsCardsPro · what these terms mean
Scout’s note
Diamond came out of Ramona, California, in the 2022 sixth round and is 25, throwing for Indianapolis at a level where his stuff grade of 0.62 ranks 94th-percentile among 827 AAA arms — miles above the 0.04 median. Unlike most arms on this board, the results cooperate: a 3.14 ERA across 43 innings at AAA, though only 39 strikeouts in that stretch. The gap between the grade and the whiffs is the question. The stuff earns the page; the command is still earning the call.
Note written · FVR scout (GLM-5.2)
Current signals
The read: Diamond's stuff grade of 0.62 ranks in the 94th percentile of the 827 AAA arms we track (median 0.04). Stuff is not command — watchlist, not a call — but stuff comes first.
- Stuff-lite
- 0.6163
- Pitches
- 672
- Age
- 25
Collect Derek Diamond
If the signal is right, the cardboard usually finds out later. Current listings:
Derek Diamond cards on eBay →Paid link — as an eBay Partner, FVR earns from qualifying purchases.
Not financial advice. We take positions only after publication — never before. Misses stay on the record.
The line
| Year | Team | Lvl | G | IP | W–L | SV | ERA | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2023 | Bradenton Marauders | A | 15 | 74.2 | 8–3 | 0 | 3.98 | 63 | 1.23 |
| 2023 | Greensboro Grasshoppers | A+ | 9 | 45.0 | 2–2 | 0 | 6.00 | 34 | 1.44 |
| 2024 | Greensboro Grasshoppers | A+ | 23 | 95.2 | 5–6 | 0 | 4.80 | 83 | 1.32 |
| 2025 | Bradenton Marauders | A | 2 | 2.1 | 1–0 | 0 | 7.71 | 1 | 1.71 |
| 2025 | Greensboro Grasshoppers | A+ | 2 | 3.0 | 1–0 | 0 | 0.00 | 7 | 0.33 |
| 2025 | Altoona Curve | AA | 9 | 14.0 | 1–3 | 0 | 14.79 | 12 | 2.93 |
| 2026 | Bradenton Marauders | A | 2 | 4.0 | 0–0 | 0 | 2.25 | 5 | 1.00 |
| 2026 | Altoona Curve | AA | 5 | 10.0 | 2–0 | 1 | 0.00 | 13 | 0.20 |
| 2026 | Indianapolis Indians | AAA | 29 | 43.0 | 5–0 | 1 | 3.14 | 39 | 1.19 |
Bio & season lines: MLB StatsAPI · refreshed nightly · abbreviations →