Riley O'Brien
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A player page shows one box score, because a hitter and a pitcher share almost no column — which half you get follows the one he appears in. Every rate is built from summed counts, so a batting average is hits over at bats across whatever window you picked rather than an average of nightly averages. Pitchers rank against starters or relievers, which is the split the sport itself draws. A dash means no number for that cell, or a zero in a roster column that counts.
Riley O'Brien
Pitcher2025 · Regular Season
Of noteRiley O'Brien comes in 30th of 235 relief pitchers in hits per 9, at 6.2.
94th beats 94% of the Relief Pitchers; 1 is the best of however many the row says. Higher is always better, whichever way the stat runs. Red to green by where the placing sits. A stat with no better end is left unpainted.
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Game log42 games
| Date | Opp | IP | W | L | SV | H | HR | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 28, 2025 | @ CHC | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| Sep 24, 2025 | @ SF | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 9.00 | 3.00 |
| Sep 23, 2025 | @SF | 0.1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Sep 21, 2025 |  MIL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Sep 20, 2025 | MIL | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 0.75 |
| Sep 16, 2025 |  CIN | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Sep 14, 2025 | @MIL | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| Sep 13, 2025 | @MIL | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | — | — |
| Sep 10, 2025 | @ SEA | 2 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0.00 | 2.00 |
| Sep 7, 2025 | SF | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| Sep 6, 2025 | SF | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Aug 28, 2025 |  PIT | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 25, 2025 | PIT | 1.2 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 5.40 | 0.60 |
| Aug 19, 2025 | @ MIA | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 0.00 | 2.00 |
| Aug 17, 2025 |  NYY | 1.2 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 0.60 |
| Aug 13, 2025 |  COL | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0.00 | 2.00 |
| Aug 10, 2025 | CHC | 0.2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.50 |
| Aug 8, 2025 | CHC | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 6, 2025 | @ LAD | 1.1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0.00 | 0.75 |
| Aug 4, 2025 | @LAD | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 9.00 | 1.00 |
| July 30, 2025 | MIA | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 26, 2025 |  SD | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 24, 2025 | SD | 0.1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0.00 | 6.00 |
| July 22, 2025 | @COL | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0.00 | 3.00 |
| July 20, 2025 | @ ARI | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| July 13, 2025 |  ATL | 1.2 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0.00 | 1.20 |
| July 11, 2025 | ATL | 2 | 0 | 0 | 0 | 2 | 0 | 4 | 1 | 0.00 | 1.50 |
| July 6, 2025 | @CHC | 2 | 0 | 0 | 0 | 2 | 0 | 3 | 0 | 0.00 | 1.00 |
| July 2, 2025 | @PIT | 0.2 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 13.50 | 4.50 |
| June 29, 2025 | @ CLE | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 0.00 | 2.00 |
| June 26, 2025 | CHC | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.00 |
| June 23, 2025 | CHC | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| June 20, 2025 | CIN | 0.2 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.50 |
| June 19, 2025 | @ CWS | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| June 17, 2025 | @CWS | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.50 |
| June 13, 2025 | @MIL | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| June 11, 2025 |  TOR | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 0.00 | 1.50 |
| June 9, 2025 | TOR | 2 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 4.50 | 1.50 |
| June 5, 2025 |  KC | 1.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.60 |
| May 1, 2025 | @CIN | 1.2 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 16.20 | 1.20 |
| April 28, 2025 | @CIN | 0.2 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0.00 | 4.50 |
| April 26, 2025 | MIL | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Season | G | GS | IP | W | L | SV | ERA | WHIP | H | HR | K | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 66 | 0 | 62.2 | 3 | 9 | 38 | 4.16 | 1.31 | 53 | 5 | 64 | 29 |
| 2025 | 42 | 0 | 48 | 3 | 1 | 6 | 2.06 | 1.15 | 33 | 2 | 45 | 22 |
| 2024 | 8 | 0 | 8 | 0 | 0 | 0 | 11.25 | 2.63 | 13 | 2 | 11 | 8 |
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