RP - St. Louis Cardinals
- Age 31
- College of Idaho
- Bats: R
- Throws: R
Rostered In ~6.5% of leagues
2026 Outlook
- Draft Rank (ECR)
- P #134
- Best / Worst
- #92 / #141
- ADP
- #329
Eligibility
- Yahoo
- RP
- ESPN
- RP
- CBS
- RP
Availability
Player News
View More NewsRiley O'Brien (calf) set for bullpen session Tuesday
O'Brien (calf) suffered a minor right calf strain one week ago. Tuesday's bullpen session will mark his initial mound work since sustaining the injury.
Fantasy Impact
The calf strain is projected to keep O'Brien from representing Team South Korea in the World Baseball Classic. Tuesday represents his return to throwing from the mound.
Recent Articles
View More Articles | The toughest category to fill in fantasy baseball is saves. Part of that is tied to the volatility of pitching a single inning. A couple of 85-mile-per-hour bloop hits fall in, followed by a home run, and suddenly three earned … read more »  by in Fantasy5 days ago |
Rankings
View More Rankings| ECR | Best | Worst | # of Experts | |
|---|---|---|---|---|
| Draft | #303 | #155 | #340 | 10 |
| Rest of Season | - | - | - | - |
| Dynasty | - | - | - | - |
ECR vs ADP
| G | GS | W | L | SV | BS | HD | IP | H | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 60 | 0 | 3 | 3 | 15 | 1 | 10 | 60.3 | 53 | 26 | 5 | 27 | 63 | 3.93 | 1.32 |
Stats
View More Stats| Pitching Stats | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | G | GS | W | L | SV | IP | H | R | ER | HR | BB | BB% | K | K% | ERA | WHIP | ||||||
| 2024 | STL | 8 | 0 | 0 | 0 | 0 | 8 | 13 | 10 | 10 | 2 | 8 | 17.39 | 11 | 23.91 | 11.25 | 2.63 | ||||||
| 2025 | STL | 42 | 0 | 3 | 1 | 6 | 48 | 33 | 13 | 11 | 2 | 22 | 11.06 | 45 | 22.61 | 2.06 | 1.15 | ||||||
History
Game Log
View More Games| Game | OPP | Score | DEC | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun, Sep 28 | @ CHC | - | - | 1.0 | 1 | 0 | 0 | 0 | 0 | 2 | 0.00 | 1.00 |
| Wed, Sep 24 | @ SF | - | L | 1.0 | 2 | 1 | 1 | 0 | 1 | 0 | 9.00 | 3.00 |
| Tue, Sep 23 | @ SF | - | SV | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 0.00 |
| Sun, Sep 21 | vs. MIL | - | - | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
Game Schedule
View Schedule| Game | Opp. Team | ||||
|---|---|---|---|---|---|
| Date | Opp | Time | Pitcher | VBR | Matchup |
| Thu, Mar 26th | vs TB | 4:15pm | #31 | ||
| Sat, Mar 28th | vs TB | 2:15pm | |||
| Sun, Mar 29th | vs TB | 2:15pm | |||
| Mon, Mar 30th | vs NYM | 7:45pm | |||
