Bob O'Brien vs Blake Treinen
MLB career
| Stat | B. O'Brien | B. Treinen |
|---|---|---|
| G | 14 | 560 |
| IP | 42.0 | 599.1 |
| ERA | 3.00 | 2.93 |
| WHIP | 1.31 | 1.24 |
| K | 15 | 621 |
| BB | 13 | 233 |
| K/9 | 3.21 | 9.33 |
| BB/9 | 2.79 | 3.50 |
AAA career
| Stat | B. O'Brien | B. Treinen |
|---|---|---|
| G | — | 42 |
| IP | — | 111.1 |
| ERA | — | 3.56 |
| WHIP | — | 1.17 |
| K | — | 102 |
| BB | — | 24 |
| K/9 | — | 8.25 |
| BB/9 | — | 1.94 |
B. O'Brien · last outing
Jul 7, 1971 vs Chicago Cubs — 1.0 IP, 1 K, 0 BB, 2 ER
B. Treinen · last outing
Sep 23, 2026 vs San Diego Padres — 0.2 IP, 0 K, 1 BB, 1 ER