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 #123
- Best / Worst
- #92 / #144
- ADP
- #328
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 | Finding value in average draft position (ADP) after pick 300 is one of my favorite challenges in fantasy baseball. Anyone can highlight elite players or tell you to draft borderline All-Star players. But it’s the diamonds in the rough that … read more »  by in FantasyMar 2, 2026 |
Rankings
View More Rankings| ECR | Best | Worst | # of Experts | |
|---|---|---|---|---|
| Draft | #304 | #215 | #340 | 11 |
| 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 | #32 | ||
| Sat, Mar 28th | vs TB | 2:15pm | |||
| Sun, Mar 29th | vs TB | 2:15pm | |||
| Mon, Mar 30th | vs NYM | 7:45pm | |||
