Riley O'Brien vs Arizona Diamondbacks
How does Riley O'Brien play against the Arizona Diamondbacks?
Riley O'Brien has played 3 games against the Arizona Diamondbacks since Jul 20, 2025, and his team went 2-1. He averages 1.0 IP, 0.3 H, 0.0 R against them.
- Games
- 3
- Team record
- 2-1
- IP per game
- 1.0best 1
- H per game
- 0.3best 1
Single-game highs against the Arizona Diamondbacks
- IP 1
- H 1
- R 0
- ER 0
- K 2
Every game against the Arizona Diamondbacks
| IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | H: Times the batter reached base by hitting the ball, without help from an error. | R: Runs — scored by the batter, or allowed by the pitcher. | ER: Earned runs allowed — runs that scored without help from an error. | K: Batters this pitcher struck out. | |||
|---|---|---|---|---|---|---|---|
| Jul 17, 2026 |  STL at  ARI | W 5-4 | 1.0 | 1 | 0 | 0 | 1 |
| Jun 22, 2026 | ARI at STL | W 3-2 | 1.0 | 0 | 0 | 0 | 0 |
| Jul 20, 2025 | STL at ARI | L 5-3 | 1.0 | 0 | 0 | 0 | 2 |
Game logs on file, which start in 2025 — not the player’s full career against this club.