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 29
Last 14 days (through 2026-08-27): 3 G · 3.1 IP · 0.00 ERA · 5 SO · 0.60 WHIP
42 batters faced scored this season His season card →
The card rack
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 2026-08-27 · 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 2026-08-27 · 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 August 27, 2026 · trend is FVR's own nightly archive · prices via SportsCardsPro · what these terms mean
Scout’s note
A sixth-round pick out of Ramona, California, in 2022, Diamond carries a stuff grade of 0.66 — 95th percentile of the 745 AAA arms we track. But 20 strikeouts across 26 innings at Indianapolis with a 4.50 ERA tells you the grade and the results don't match yet. At 25, he's on the watchlist, not the call sheet. Stuff comes first, but it is not command.
Current signals
The read: Diamond's stuff grade of 0.67 ranks in the 95th percentile of the 767 AAA arms we track (median 0.05). Stuff is not command — watchlist, not a call — but stuff comes first.
- Stuff-lite
- 0.6651
- Pitches
- 450
- 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 | 22 | 29.1 | 5–0 | 0 | 3.99 | 25 | 1.33 |
Bio & season lines: MLB StatsAPI · refreshed nightly · abbreviations →