RP - St. Louis Cardinals
- Age 31
- College of Idaho
- Bats: R
- Throws: R
Rostered In ~60% of leagues
Availability
Player News
View More NewsRiley O'Brien locks down fifth save as Cards top Guardians
Riley O'Brien struck out two batters in a scoreless outing to earn the save in Wednesday's 5-3 win over the Guardians.
Fantasy Impact
After Wednesday's win, O'Brien has a 0.00 ERA and 0.39 WHIP with five saves, one hold and two wins through 10 appearances. He's gone six straight appearances without allowing a hit or a walk. He's pitching like one of the best closers in the league right now.
Recent Articles
View More Articles | Each week during the fantasy baseball season, I take a look at the relief pitcher landscape to aid with waiver wire and trade decisions. Let’s see what’s changed in the last week. Fantasy Baseball Trade Analyzer Fantasy Baseball Waiver Wire … read more »  by in FantasyApr 16, 2026 |
Rankings
View More Rankings| ECR | Best | Worst | # of Experts | |
|---|---|---|---|---|
| Draft | #132 | #67 | #167 | 20 |
| Rest of Season | #101 | #48 | #116 | 4 |
| Dynasty | - | - | - | - |
Value Based Rank (ROS)
ECR vs ADP
| G | GS | W | L | SV | BS | HD | IP | H | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 59 | 0 | 3 | 3 | 14 | 1 | 11 | 60.2 | 52 | 26 | 5 | 27 | 63 | 3.92 | 1.31 |
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 | ||||||
| 2026 | STL | 10 | 0 | 2 | 0 | 5 | 10.1 | 4 | 1 | 0 | 0 | 0 | 0.00 | 11 | 31.43 | 0.00 | 0.39 | ||||||
History
Game Log
View More Games| Game | OPP | Score | DEC | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wed, Apr 15 | vs. CLE | W, 3-5 | SV | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0.00 | 0.00 |
| Tue, Apr 14 | vs. CLE | W, 5-6 | W | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 0.00 |
| Fri, Apr 10 | vs. BOS | W, 2-3 | SV | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 0.00 |
| Wed, Apr 8 | @ WSH | W, 6-1 | - | 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 |
| Fri, Apr 17th | @ HOU | 8:10pm | |||
| Sat, Apr 18th | @ HOU | 7:10pm | #98 | ||
| Sun, Apr 19th | @ HOU | 2:10pm | #197 | ||
