#61 Riley O'Brien P
St. Louis Cardinals
6' 4" / 180 lbs —
Age 31 —
B/T R / R — Debut
2021-09-28
Career vs MLB Teams
| Opponent | G | AB | H | HR | RBI | BB | SO | AVG | OPS |
|---|
| Season | Team | G | AB | H | 2B | 3B | HR | RBI | BB | SO | SB | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | — | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 |
Pitching Seasons
| Season | Team | G | GS | W | L | SV | IP | ER | BB | H | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | St. Louis Cardinals | 66 | 0 | 3 | 9 | 38 | 64.0 | 29 | 29 | 53 | 64 | 4.08 | 1.28 |
| 2025 | St. Louis Cardinals | 42 | 0 | 3 | 1 | 6 | 48.0 | 11 | 22 | 33 | 45 | 2.06 | 1.15 |
| 2024 | St. Louis Cardinals | 8 | 0 | 0 | 0 | 0 | 8.0 | 10 | 8 | 13 | 11 | 11.25 | 2.63 |
| 2022 | Seattle Mariners | 1 | 0 | 0 | 0 | 0 | 1.0 | 0 | 1 | 1 | 1 | 0.00 | 2.00 |
| 2021 | Cincinnati Reds | 1 | 0 | 0 | 1 | 0 | 1.1 | 2 | 3 | 2 | 2 | 13.50 | 3.75 |
Pitching – Earned Runs Per Game
Pitching Game Log
| Date | Opp | IP | H | ER | BB | K | HR | Pitches | FDP |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-20 | Washington Nationals | 1.0 | 0 | 0 | 0 | 0 | 0 | 6 | 3.00 |
| 2026-09-19 | Washington Nationals | 1.0 | 1 | 0 | 0 | 2 | 0 | 12 | 9.00 |
| 2026-09-16 | San Francisco Giants | 1.0 | 2 | 1 | 1 | 0 | 1 | 16 | 0.00 |
| 2026-09-14 | San Francisco Giants | 1.0 | 1 | 0 | 1 | 2 | 0 | 19 | 9.00 |
| 2026-09-12 | Chicago White Sox | 1.0 | 1 | 2 | 1 | 2 | 1 | 21 | 3.00 |
| 2026-09-11 | Chicago White Sox | 1.0 | 0 | 0 | 0 | 1 | 0 | 11 | 6.00 |
| 2026-09-07 | San Francisco Giants | 1.0 | 1 | 0 | 2 | 0 | 0 | 11 | 3.00 |
| 2026-09-04 | Colorado Rockies | 1.0 | 1 | 0 | 0 | 2 | 0 | 12 | 9.00 |
| 2026-09-03 | Los Angeles Dodgers | 0.1 | 2 | 2 | 1 | 0 | 0 | 17 | -5.70 |
| 2026-09-02 | Los Angeles Dodgers | 1.0 | 0 | 0 | 0 | 1 | 0 | 17 | 6.00 |
| 2026-08-27 | Baltimore Orioles | 1.0 | 1 | 0 | 0 | 1 | 0 | 11 | 6.00 |
| 2026-08-26 | Baltimore Orioles | 1.0 | 2 | 1 | 0 | 0 | 0 | 17 | 0.00 |
| 2026-08-23 | Philadelphia Phillies | 0.2 | 5 | 6 | 1 | 0 | 1 | 39 | -17.40 |
| 2026-08-20 | Cincinnati Reds | 0.1 | 1 | 0 | 2 | 0 | 0 | 15 | 0.30 |
| 2026-08-18 | Cincinnati Reds | 1.0 | 0 | 0 | 0 | 1 | 0 | 13 | 6.00 |
| 2026-08-17 | Cincinnati Reds | 1.0 | 0 | 0 | 0 | 3 | 0 | 14 | 12.00 |
| 2026-08-15 | Chicago Cubs | 1.0 | 0 | 0 | 0 | 0 | 0 | 14 | 3.00 |
| 2026-08-11 | Philadelphia Phillies | 1.0 | 0 | 0 | 0 | 1 | 0 | 8 | 6.00 |
| 2026-08-09 | Colorado Rockies | 1.0 | 0 | 0 | 0 | 0 | 0 | 8 | 3.00 |
| 2026-08-07 | Colorado Rockies | 1.0 | 0 | 0 | 1 | 0 | 0 | 14 | 3.00 |
| 2026-08-05 | New York Yankees | 1.0 | 0 | 0 | 1 | 1 | 0 | 22 | 6.00 |
| 2026-08-02 | Toronto Blue Jays | 1.0 | 1 | 0 | 0 | 1 | 0 | 18 | 6.00 |
| 2026-07-30 | Chicago Cubs | 1.0 | 0 | 0 | 0 | 1 | 0 | 17 | 6.00 |
| 2026-07-29 | Chicago Cubs | 1.0 | 0 | 0 | 1 | 1 | 0 | 18 | 6.00 |
| 2026-07-22 | Los Angeles Angels | 1.0 | 0 | 0 | 2 | 3 | 0 | 26 | 12.00 |
| 2026-07-20 | Los Angeles Angels | 0.1 | 2 | 2 | 1 | 1 | 0 | 21 | -2.70 |
| 2026-07-17 | Arizona Diamondbacks | 1.0 | 1 | 0 | 1 | 1 | 0 | 16 | 6.00 |
| 2026-07-11 | Atlanta Braves | 1.0 | 0 | 0 | 1 | 1 | 0 | 18 | 6.00 |
| 2026-07-10 | Atlanta Braves | 1.0 | 0 | 0 | 0 | 2 | 0 | 12 | 9.00 |
| 2026-07-08 | Milwaukee Brewers | 1.0 | 1 | 0 | 0 | 1 | 0 | 15 | 6.00 |
| 2026-07-04 | Chicago Cubs | 1.0 | 0 | 0 | 1 | 1 | 0 | 13 | 6.00 |
| 2026-06-30 | Atlanta Braves | 1.0 | 1 | 0 | 0 | 0 | 0 | 9 | 3.00 |
| 2026-06-28 | Miami Marlins | 1.0 | 0 | 0 | 0 | 1 | 0 | 15 | 6.00 |
| 2026-06-22 | Arizona Diamondbacks | 1.0 | 0 | 0 | 0 | 0 | 0 | 17 | 3.00 |
| 2026-06-21 | Kansas City Royals | 1.0 | 2 | 2 | 0 | 1 | 1 | 12 | 0.00 |
| 2026-06-16 | San Diego Padres | 1.0 | 0 | 0 | 1 | 0 | 0 | 13 | 3.00 |
| 2026-06-13 | Minnesota Twins | 1.0 | 0 | 1 | 3 | 1 | 0 | 31 | 3.00 |
| 2026-06-07 | Cincinnati Reds | 1.0 | 1 | 0 | 0 | 1 | 0 | 15 | 6.00 |
| 2026-06-06 | Cincinnati Reds | 1.0 | 2 | 0 | 1 | 1 | 0 | 23 | 6.00 |
| 2026-06-03 | Texas Rangers | 1.0 | 0 | 0 | 1 | 0 | 0 | 13 | 3.00 |
| 2026-06-02 | Texas Rangers | 1.0 | 3 | 3 | 1 | 2 | 0 | 32 | 0.00 |
| 2026-05-29 | Chicago Cubs | 1.0 | 1 | 1 | 0 | 0 | 0 | 14 | 0.00 |
| 2026-05-23 | Cincinnati Reds | 1.1 | 0 | 0 | 1 | 2 | 0 | 20 | 9.30 |
| 2026-05-19 | Pittsburgh Pirates | 1.0 | 2 | 2 | 1 | 0 | 0 | 22 | -3.00 |
| 2026-05-15 | Kansas City Royals | 1.0 | 1 | 0 | 0 | 0 | 0 | 10 | 3.00 |
| 2026-05-14 | Athletics | 1.0 | 0 | 0 | 0 | 2 | 0 | 16 | 9.00 |
| 2026-05-12 | Athletics | 1.0 | 0 | 0 | 1 | 0 | 0 | 13 | 3.00 |
| 2026-05-10 | San Diego Padres | 1.0 | 2 | 2 | 0 | 3 | 1 | 31 | 6.00 |
| 2026-05-07 | San Diego Padres | 1.0 | 0 | 0 | 0 | 1 | 0 | 10 | 6.00 |
| 2026-05-04 | Milwaukee Brewers | 0.2 | 0 | 0 | 0 | 0 | 0 | 3 | 0.60 |
| 2026-05-02 | Los Angeles Dodgers | 1.0 | 4 | 2 | 0 | 2 | 0 | 26 | 3.00 |
| 2026-04-29 | Pittsburgh Pirates | 1.0 | 1 | 0 | 0 | 1 | 0 | 11 | 6.00 |
| 2026-04-25 | Seattle Mariners | 1.0 | 4 | 2 | 1 | 1 | 0 | 39 | 0.00 |
| 2026-04-21 | Miami Marlins | 1.0 | 1 | 0 | 0 | 1 | 0 | 17 | 6.00 |
| 2026-04-19 | Houston Astros | 1.1 | 1 | 0 | 0 | 2 | 0 | 19 | 15.30 |
| 2026-04-18 | Houston Astros | 0.2 | 0 | 0 | 0 | 1 | 0 | 7 | 3.60 |
| 2026-04-15 | Cleveland Guardians | 1.0 | 0 | 0 | 0 | 2 | 0 | 15 | 9.00 |
| 2026-04-14 | Cleveland Guardians | 1.0 | 0 | 0 | 0 | 1 | 0 | 15 | 12.00 |
| 2026-04-10 | Boston Red Sox | 1.0 | 0 | 0 | 0 | 1 | 0 | 8 | 6.00 |
| 2026-04-08 | Washington Nationals | 1.0 | 0 | 0 | 0 | 0 | 0 | 15 | 3.00 |
| 2026-04-07 | Washington Nationals | 1.0 | 0 | 0 | 0 | 2 | 0 | 16 | 9.00 |
| 2026-04-05 | Detroit Tigers | 1.0 | 0 | 0 | 0 | 1 | 0 | 13 | 6.00 |
| 2026-04-01 | New York Mets | 1.0 | 1 | 0 | 0 | 2 | 0 | 16 | 9.00 |
| 2026-03-31 | New York Mets | 1.0 | 0 | 0 | 0 | 0 | 0 | 11 | 3.00 |
| 2026-03-28 | Tampa Bay Rays | 1.0 | 2 | 0 | 0 | 0 | 0 | 9 | 3.00 |
| 2026-03-26 | Tampa Bay Rays | 1.1 | 1 | 0 | 0 | 2 | 0 | 17 | 15.30 |
| 2025-09-28 | Chicago Cubs | 1.0 | 1 | 0 | 0 | 2 | 0 | 13 | 9.00 |
| 2025-09-24 | San Francisco Giants | 1.0 | 2 | 1 | 1 | 0 | 0 | 16 | 0.00 |
| 2025-09-23 | San Francisco Giants | 0.1 | 0 | 0 | 0 | 1 | 0 | 5 | 3.30 |
| 2025-09-21 | Milwaukee Brewers | 1.0 | 0 | 0 | 0 | 0 | 0 | 15 | 3.00 |
| 2025-09-20 | Milwaukee Brewers | 1.1 | 0 | 0 | 1 | 1 | 0 | 19 | 6.30 |
| 2025-09-16 | Cincinnati Reds | 1.0 | 0 | 0 | 0 | 1 | 0 | 9 | 6.00 |
| 2025-09-14 | Milwaukee Brewers | 1.0 | 0 | 0 | 1 | 2 | 0 | 16 | 9.00 |
| 2025-09-13 | Milwaukee Brewers | 0.0 | 2 | 3 | 0 | 0 | 0 | 18 | -9.00 |
| 2025-09-10 | Seattle Mariners | 2.0 | 2 | 0 | 2 | 2 | 0 | 31 | 12.00 |
| 2025-09-07 | San Francisco Giants | 1.0 | 1 | 0 | 0 | 0 | 0 | 11 | 3.00 |
| 2025-09-06 | San Francisco Giants | 1.0 | 0 | 0 | 0 | 1 | 0 | 8 | 12.00 |
| 2025-08-28 | Pittsburgh Pirates | 1.0 | 0 | 0 | 0 | 0 | 0 | 13 | 3.00 |
| 2025-08-25 | Pittsburgh Pirates | 1.2 | 1 | 1 | 0 | 1 | 0 | 21 | 9.60 |
| 2025-08-19 | Miami Marlins | 1.0 | 0 | 0 | 2 | 2 | 0 | 18 | 9.00 |
| 2025-08-17 | New York Yankees | 1.2 | 1 | 0 | 0 | 2 | 0 | 24 | 9.60 |
| 2025-08-13 | Colorado Rockies | 1.0 | 2 | 0 | 0 | 0 | 0 | 10 | 3.00 |
| 2025-08-10 | Chicago Cubs | 0.2 | 0 | 0 | 1 | 1 | 0 | 13 | 3.60 |
| 2025-08-08 | Chicago Cubs | 1.0 | 0 | 0 | 0 | 0 | 0 | 9 | 3.00 |
| 2025-08-06 | Los Angeles Dodgers | 1.1 | 0 | 0 | 1 | 0 | 0 | 20 | 3.30 |
| 2025-08-04 | Los Angeles Dodgers | 1.0 | 1 | 1 | 0 | 0 | 0 | 6 | 6.00 |
| 2025-07-30 | Miami Marlins | 1.1 | 0 | 0 | 0 | 1 | 0 | 12 | 6.30 |
| 2025-07-26 | San Diego Padres | 1.0 | 0 | 0 | 0 | 1 | 0 | 15 | 6.00 |
| 2025-07-24 | San Diego Padres | 0.1 | 1 | 0 | 1 | 1 | 0 | 13 | 3.30 |
| 2025-07-22 | Colorado Rockies | 1.0 | 1 | 0 | 2 | 1 | 0 | 31 | 6.00 |
| 2025-07-20 | Arizona Diamondbacks | 1.0 | 0 | 0 | 0 | 2 | 0 | 17 | 9.00 |
| 2025-07-13 | Atlanta Braves | 1.2 | 1 | 0 | 1 | 2 | 0 | 27 | 9.60 |
| 2025-07-11 | Atlanta Braves | 2.0 | 2 | 0 | 1 | 4 | 0 | 38 | 18.00 |
| 2025-07-06 | Chicago Cubs | 2.0 | 2 | 0 | 0 | 3 | 0 | 39 | 15.00 |
| 2025-07-02 | Pittsburgh Pirates | 0.2 | 2 | 1 | 1 | 1 | 0 | 20 | 0.60 |
| 2025-06-29 | Cleveland Guardians | 1.0 | 0 | 0 | 2 | 3 | 0 | 26 | 12.00 |
| 2025-06-26 | Chicago Cubs | 1.0 | 0 | 0 | 1 | 1 | 0 | 16 | 6.00 |
| 2025-06-23 | Chicago Cubs | 1.0 | 1 | 0 | 0 | 0 | 0 | 19 | 3.00 |
| 2025-06-20 | Cincinnati Reds | 0.2 | 0 | 0 | 1 | 2 | 0 | 13 | 6.60 |
| 2025-06-19 | Chicago White Sox | 1.0 | 0 | 0 | 0 | 1 | 0 | 14 | 6.00 |
| 2025-06-17 | Chicago White Sox | 2.0 | 1 | 0 | 0 | 1 | 0 | 25 | 9.00 |
| 2025-06-13 | Milwaukee Brewers | 1.0 | 0 | 0 | 0 | 1 | 0 | 17 | 6.00 |
| 2025-06-11 | Toronto Blue Jays | 2.0 | 2 | 0 | 1 | 1 | 0 | 26 | 9.00 |
| 2025-06-09 | Toronto Blue Jays | 2.0 | 3 | 1 | 0 | 0 | 1 | 22 | 3.00 |
| 2025-06-05 | Kansas City Royals | 1.2 | 1 | 0 | 0 | 1 | 0 | 25 | 6.60 |
| 2025-05-01 | Cincinnati Reds | 1.2 | 1 | 3 | 1 | 2 | 1 | 34 | 0.60 |
| 2025-04-28 | Cincinnati Reds | 0.2 | 2 | 0 | 1 | 0 | 0 | 12 | 0.60 |
| 2025-04-26 | Milwaukee Brewers | 0.1 | 0 | 0 | 0 | 0 | 0 | 2 | 0.30 |
| 2024-09-14 | Toronto Blue Jays | 2.0 | 4 | 2 | 1 | 3 | 0 | 51 | 0.00 |
| 2024-09-08 | Seattle Mariners | 1.1 | 1 | 0 | 2 | 2 | 0 | 27 | 0.00 |
| 2024-09-06 | Seattle Mariners | 0.2 | 0 | 0 | 0 | 0 | 0 | 8 | 0.00 |
| 2024-09-02 | Milwaukee Brewers | 0.2 | 2 | 4 | 3 | 1 | 1 | 35 | 0.00 |
| 2024-09-01 | New York Yankees | 0.1 | 2 | 0 | 0 | 0 | 0 | 9 | 0.00 |
| 2024-08-30 | New York Yankees | 1.0 | 2 | 2 | 0 | 3 | 1 | 23 | 0.00 |
| 2024-08-27 | San Diego Padres | 1.0 | 1 | 1 | 0 | 0 | 0 | 13 | 0.00 |
| 2024-03-28 | Los Angeles Dodgers | 1.0 | 1 | 1 | 2 | 2 | 0 | 28 | 0.00 |
| 2022-05-07 | Tampa Bay Rays | 1.0 | 1 | 0 | 1 | 1 | 0 | 23 | 0.00 |
| 2021-09-28 | Chicago White Sox | 1.1 | 2 | 2 | 3 | 2 | 2 | 42 | 0.00 |