Riley O'Brien
Recent Box Scores
3 recent games. Recent box-score lines from game pages.
- Jul 21St. Louis Cardinals at Los Angeles Angels1.0 IP, 3 K, 0 ER, 2 BBKept runs off the board over 1.0 innings.GameCastBox ScoreMatchupPlayedImpact 10.8
- Jul 20St. Louis Cardinals at Los Angeles Angels0.1 IP, 1 K, 2 ER, 1 BBLogged 0.1 innings on the mound.GameCastBox ScoreMatchupPlayedImpact 0
- Jul 17St. Louis Cardinals at Arizona Diamondbacks1.0 IP, 1 K, 0 ER, 1 BBKept runs off the board over 1.0 innings.GameCastBox ScoreMatchupPlayedImpact 7.2
Relief Pitcher
#61
Player card
Riley O'Brien
Movement: Down -2Confidence: MediumBased on: recent box scores
Riley O'Brien rates 47/100 because the model is pricing 60.0 innings, 0 strikeouts, a 4.20 ERA, and a 1.27 WHIP for St. Louis Cardinals. The call weighs production, role, momentum, availability, and ceiling; strongest inputs: STRIKEOUTS, COMMAND, RUN PREVENTION. Rafters value call is Watch with the movement label down 2 today. Why score moved: role security keeps the call capped pulled the score down this cycle. The caveat: role security keeps the call capped, availability is the main drag.
How to read this cardPitcher lens: innings, strikeouts, ERA/WHIP prevention, recent workload, and role shape the value call.
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2026 · pitching
2026 · pitching
| GP | GS | W | L | ERA | WHIP | IP | K | BB | SV | HLD |
|---|---|---|---|---|---|---|---|---|---|---|
| 62 | 0 | 3 | 8 | 4.20 | 1.27 | 60.0 | 60 | 27 | 36 | 1 |
Career Snapshot
pitching · 2021–2026
| GP | GS | W | L | W% | WAR | ERA | WHIP | IP | K | BB | K/BB | H | R | ER | SV | HLD | BLSV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 113 | 1 | 6 | 9 | .400 | — | 3.76 | 1.34 | 117.1 | 117 | 60 | 2.0 | 97 | 55 | 49 | 42 | 7 | 11 |
Opponent Batting · 2021–2026
| P | TBF | P-TBF | OBA | OOBP | OSLUG | OOPS | 2B | 3B | HR | TB | RBI | BH | SH | SF | IBB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 513 | 3.912 | .227 | .344 | .339 | .683 | 17 | 2 | 9 | 145 | 61 | 18 | 4 | 3 | 6 |
Expanded Pitching · 2021–2026
| P/S | P/I | K/9 | GB | FB | G/F | IR | IRS | WP | SB | CS | RSUP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 42.0 | 17.1 | 9.0 | 161 | 157 | 1.0 | 25 | 12 | 10 | 5 | 1 | 1.0 |
Season by Season
pitching
| Season | Team | GP | GS | W | L | W% | WAR | ERA | WHIP | IP | K | BB | K/BB | H | R | ER | SV | HLD | BLSV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | Cincinnati Reds | 1 | 1 | 0 | 1 | .000 | -0.1 | 13.50 | 3.75 | 1.1 | 2 | 3 | 0.7 | 2 | 2 | 2 | 0 | 0 | 0 |
| 2022 | Seattle Mariners | 1 | 0 | 0 | 0 | .000 | 0.0 | 0.00 | 2.00 | 1.0 | 1 | 1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2024 | St Louis Cardinals | 8 | 0 | 0 | 0 | .000 | -0.4 | 11.25 | 2.63 | 8.0 | 11 | 8 | 1.4 | 13 | 10 | 10 | 0 | 0 | 1 |
| 2025 | St Louis Cardinals | 42 | 0 | 3 | 1 | .750 | 1.5 | 2.06 | 1.15 | 48.0 | 45 | 22 | 2.0 | 33 | 13 | 11 | 6 | 6 | 3 |
| 2026 | St Louis Cardinals | 62 | 0 | 3 | 8 | .273 | 0.1 | 4.20 | 1.27 | 60.0 | 60 | 27 | 2.2 | 49 | 32 | 28 | 36 | 1 | 8 |
Opponent Batting
| Season | Team | P | TBF | P-TBF | OBA | OOBP | OSLUG | OOPS | 2B | 3B | HR | TB | RBI | BH | SH | SF | IBB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | Cincinnati Reds | 42 | 9 | 4.667 | .333 | .556 | 1.333 | 1.889 | 0 | 0 | 2 | 8 | 2 | 0 | 0 | 0 | 0 |
| 2022 | Seattle Mariners | 23 | 5 | 4.600 | .250 | .400 | .250 | .650 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2024 | St Louis Cardinals | 194 | 46 | 4.217 | .361 | .478 | .639 | 1.117 | 2 | 1 | 2 | 23 | 11 | 1 | 0 | 1 | 0 |
| 2025 | St Louis Cardinals | 758 | 199 | 3.809 | .196 | .313 | .274 | .587 | 5 | 1 | 2 | 46 | 13 | 7 | 1 | 1 | 2 |
| 2026 | St Louis Cardinals | 1011 | 259 | 3.903 | .225 | .336 | .326 | .662 | 10 | 0 | 4 | 71 | 0 | 10 | 3 | 1 | 4 |
Expanded Pitching
| Season | Team | P/S | P/I | K/9 | QS | CG | SHO | GSC | GB | FB | G/F | IR | IRS | WP | BK | SB | CS | RSUP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | Cincinnati Reds | 42.0 | 31.5 | 13.5 | 0 | 0 | 0 | 41.0 | 2 | 2 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 |
| 2022 | Seattle Mariners | 0.0 | 23.0 | 9.0 | 0 | 0 | 0 | 0.0 | 3 | 0 | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 |
| 2024 | St Louis Cardinals | 0.0 | 24.3 | 12.4 | 0 | 0 | 0 | 0.0 | 10 | 16 | 0.6 | 3 | 2 | 1 | 0 | 0 | 0 | 0.0 |
| 2025 | St Louis Cardinals | 0.0 | 15.8 | 8.4 | 0 | 0 | 0 | 0.0 | 69 | 56 | 1.2 | 10 | 3 | 3 | 0 | 2 | 1 | 0.0 |
| 2026 | St Louis Cardinals | 0.0 | 16.9 | 9.0 | 0 | 0 | 0 | 0.0 | 64 | 49 | 1.3 | 0 | 7 | 6 | 0 | 4 | 0 | 0.0 |
Latest News
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Cardinals Send Three Players to the All-Star Game as Riley O’Brien Throws a Scoreless Inning in a 4-0 Loss
Jordan Walker, Ivan Herrera and closer Riley O’Brien represented a surprising Cardinals club in the All-Star Game, with O’Brien tossing a scoreless inning in the National League’s 4-0 loss.
More on the Riley O'Brien news feed · Team coverage in the St. Louis Cardinals feed.
MLB player profile · ESPN public stats and Rafters box scores.