Riley O'Brien headshot

Riley O'Brien

PR/R31 yrsUnited StatesActive
St. Louis Cardinals
Debut: Sep 28, 2021 · Draft: 2017

Birthplace

Seattle, WA, USA

Season Highlights

HR 0RBI 0OPS .000

Profile

5 Seasons · —

Bio

Position
P
Bats / Throws
R / R
Birth Date
Feb 6, 1995
Debut
Sep 28, 2021

Season Splits

Splits are shown as stored by team. Some players may have multiple rows after trades.

Seasons: 5 · Hitting: 1 · Pitching: 5 · Fielding: 2

Trade & Transaction History

3 recorded moves.

Status Change

Jul 13, 2026

National League All-Stars activated RHP Riley O'Brien.

To National League All-Stars

Number Change

Apr 16, 2026

RHP Riley O'Brien changed number to 61.

To St. Louis Cardinals

Number Change

Apr 15, 2026

RHP Riley O'Brien changed number to 42.

To St. Louis Cardinals