Riley O'Brien
STL Cardinals • #55 • Reliever
Active
Position
Reliever
HT/WT Height/Weight
6'4" 180 lbs
Age
30
Draft
2017 - Round 8 (4 overall) by 106
Riley O'Brien Player Props and Stats
No Props Available
Last 10 | Season
| Date | Opp | Score | S/R | IP | SO | Outs | RES | H | BB | ER | R | HR | PIT | P/IP | G/F |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 13 |
vs  ATL
|
W 5 - 4 | R | 1.2 | 2 | 5 | H | 1 | 1 | 0 | 0 | 0 | 27 | 16.2 | 1.00 |
| Jul 11 |
vs ATL
|
L 6 - 5 | R | 2.0 | 4 | 6 | ND | 2 | 1 | 0 | 0 | 0 | 38 | 19.0 | 1.00 |
| Jul 6 |
@  CHC
|
L 11 - 0 | R | 2.0 | 3 | 6 | ND | 2 | 0 | 0 | 0 | 0 | 39 | 19.5 | 0.50 |
| Jul 2 |
@  PIT
|
L 5 - 0 | R | 0.2 | 1 | 2 | ND | 2 | 1 | 1 | 1 | 0 | 20 | 30.0 | 0.00 |
| Jun 29 |
@  CLE
|
W 7 - 0 | R | 1.0 | 3 | 3 | ND | 0 | 2 | 0 | 0 | 0 | 26 | 26.0 | 0.00 |
| Jun 26 |
vs CHC
|
L 3 - 0 | R | 1.0 | 1 | 3 | ND | 0 | 1 | 0 | 0 | 0 | 16 | 16.0 | 0.00 |
| Jun 23 |
vs CHC
|
W 8 - 2 | R | 1.0 | 0 | 3 | ND | 1 | 0 | 0 | 0 | 0 | 19 | 19.0 | 1.00 |
| Jun 20 |
vs  CIN
|
W 6 - 1 | R | 0.2 | 2 | 2 | ND | 0 | 1 | 0 | 0 | 0 | 13 | 19.5 | 0.00 |
| Jun 19 |
@  CHW
|
W 8 - 6 F/10 | R | 1.0 | 1 | 3 | ND | 0 | 0 | 0 | 0 | 0 | 14 | 14.0 | 0.00 |
| Jun 17 |
@ CHW
|
W 12 - 2 | R | 2.0 | 1 | 6 | ND | 1 | 0 | 0 | 0 | 0 | 25 | 12.5 | 1.00 |
| Last 10 Avg | 1.0 | 1.8 | 3.9 | 0.9 | 0.7 | 0.1 | 0.1 | 0.0 | 23.7 | 19.2 | 0.45 | ||||
Riley O'Brien's Pitching Statistics for Regular Season
| Season | Team | G | GS | W | L | SV | BS | ERA | CG | SHO | IP | H | R | ER | BB | SO | HR | WP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | STL | 17 | 0 | 0 | 0 | 0 | 0 | 2.01 | 0 | 0 | 22.3 | 18 | 5 | 5 | 10 | 23 | 2 | 3 |
| 2024 | STL | 8 | 0 | 0 | 0 | 0 | 1 | 11.25 | 0 | 0 | 8.0 | 13 | 10 | 10 | 8 | 11 | 2 | 1 |
| 2022 | SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0 | 0 | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
| 2021 | CIN | 1 | 1 | 0 | 1 | 0 | 0 | 13.50 | 0 | 0 | 1.3 | 2 | 2 | 2 | 3 | 2 | 2 | 0 |
Riley O'Brien's Pitching Statistics for Post Season
| Season | Team | G | GS | W | L | SV | BS | ERA | CG | SHO | IP | H | R | ER | BB | SO | HR | WP |
|---|
Pitching Splits
| Overall | Last 3 | Away | Home | Day | Night | |
|---|---|---|---|---|---|---|
| W-L | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
| ERA | 2.01 | 1.93 | 3.60 | 0.84 | 0.00 | 2.18 |
| IP | 22.3 | 4.7 | 10.0 | 10.7 | 0.0 | 20.7 |
| HITS | 18 | 6 | 8 | 9 | 0 | 17 |
| RUNS | 5 | 1 | 4 | 1 | 0 | 5 |
| ER | 5 | 1 | 4 | 1 | 0 | 5 |
| SO | 23 | 8 | 12 | 9 | 0 | 21 |
| BB | 10 | 2 | 5 | 4 | 0 | 9 |
| HR | 2 | 0 | 1 | 1 | 0 | 2 |
| OBP | .330 | .391 | .349 | .317 | .000 | .333 |
| WHIP | 1.25 | 1.71 | 1.30 | 1.22 | 0.00 | 1.26 |
| GB:FB | 2.62 | 1.00 | 2.00 | 5.00 | 0.00 | 2.86 |
| SB | 0 | 0 | 0 | 0 | 0 | 0 |
| CS | 1 | 0 | 0 | 1 | 0 | 1 |
| SB% | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| QS% | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
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