Riley
O'Brien
PAge : 31Throws : R
#61
Riley O'Brien
Height : 6' 4" · Weight : 82 kg · Bats : R · Throws : R · MLB debut : 2021-09-28
Born in : Seattle, WA, USA
MLB record
| Year | Team | PJ | V | D | MPM | MJ | RB | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | St. Louis Cardinals | 66 | 3 | 9 | 4.08 | 64.0 | 64 | 1.28 |
| 2025 | St. Louis Cardinals | 42 | 3 | 1 | 2.06 | 48.0 | 45 | 1.15 |
| 2024 | St. Louis Cardinals | 8 | 0 | 0 | 11.25 | 8.0 | 11 | 2.63 |
| 2022 | Seattle Mariners | 1 | 0 | 0 | 0.00 | 1.0 | 1 | 2.00 |
| 2021 | Cincinnati Reds | 1 | 0 | 1 | 13.50 | 1.1 | 2 | 3.75 |
| Career totals | 118 | 6 | 11 | 3.83 | 122.1 | 123 | 1.35 | |
ContractSt. Louis Cardinals payroll →
- Type
- Pre-Arbitration
- Length
- 1 yr · 2026–2026
- Total value
- 0.8 M$
- AAV
- 0.80 M$
2026
0.80 M$
Pre-arb
2027
—
Pre-arb
2028
—
Arb 1
2029
—
Arb 2
2030
—
Arb 3
Advanced stats, 2026Relief pitcherMLB stats →
ERA
4.08
FIP
3.94
xFIP
4.08
ERA-
99
WHIP
1.28
K%
23.2 %
BB%
10.5 %
Strikeouts
64
Innings
64.0
Wins
3
Stats: MLB (statsapi) and Baseball Savant.
2027 projectionMLB trends →
Projected WAR
0.3
Strikeouts
54
2026 WAR
0.3
This season's pace, over the average of the last two workloads, adjusted for next year's age.
Trend
→ Stable (-1)
- 20250.3 WAR · 0.4 per full season
- 20260.3 WAR · 0.3 per full season
Outlook, age included
-1 · 31 y.o. · prime years
It is only a projection. It knows nothing about injuries, trades or role changes.
Player ratings, 2026All ratings →
Ratings from 0 to 100, computed from Statcast and MLB stats over four seasons, never by hand. 75 = established regular, 87 = 90th percentile, 95+ = elite.
OV · Overall
71
Established regular
- VEL
- Velocity
- 87
- STF
- Stuff
- 72
- CTL
- Control
- 67
- CNT
- Contact allowed
- 69
- STA
- Stamina
- —
- DUR
- Durability
- 79
- EX
- Experience
- 66
Why these ratings?Hide details
- VEL — Velocity : Fastball velocity
- STF — Stuff : Strikeouts, K − BB
- CTL — Control : Walks avoided
- CNT — Contact allowed : xwOBA, barrels and hard-hit balls allowed
- STA — Stamina : Innings per start and innings pitched
- DUR — Durability : Games played over several seasons
- EX — Experience : Seasons in the majors
WAR and PAL Rating, 2026How we rate →
WAR is fWAR (FanGraphs' version, distributed through MLB's API): wins added above a replacement player. PAL Rating scores performance from 0 to 100 against regulars in the same role (50 = median).
WAR
0.3
#135 of 263 regular relievers
PAL Rating
39 / 100
#160 of 263 regular relievers
Value Rating
48 / 100
Surplus $2.1M · salary $0.8MPAL: dimensions
A pitcher's WAR
Computed by MLB from FIP (strikeouts, walks, home runs). FIP: 3.94 · RA9-WAR: -0.2
StatcastStatcast leaderboards →
MLB's tracking of every ball, 2026 season. The percentile ranks the player among regulars in the role: 90th means better than 90% of them.
Fastball
97.7 mi/h
89th percentile
K%
23.2 %
51th percentile
BB%
10.5 %
35th percentile
xERA
4.99
12th percentile
xwOBA allowed
.340
12th percentile
Barrels allowed
7.5 %
38th percentile
| Season | Team | WAR | PAL | OV | Fastball | K% | BB% | xERA | xwOBA allowed |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | STL | 0.3 | 39 | 71 | 97.7 | 23.2 | 10.5 | 4.99 | .340 |
| 2025 | STL | 0.3 | 69 | 77 | 98.0 | 22.6 | 11.1 | 3.61 | .296 |
Game log, 2026
| Date | Opponent | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Sep 20 | vs WSH | 1.0 | 0 | 0 | 0 | 0 | 4.08 |
| Sep 19 | vs WSH | 1.0 | 1 | 0 | 0 | 2 | 4.14 |
| Sep 16 | vs SF | 1.0 | 2 | 1 | 1 | 0 | 4.21 |
| Sep 14 | vs SF | 1.0 | 1 | 0 | 1 | 2 | 4.13 |
| Sep 12 | vs CWS | 1.0 | 1 | 2 | 1 | 2 | 4.20 |
| Sep 11 | vs CWS | 1.0 | 0 | 0 | 0 | 1 | 3.97 |
| Sep 7 | @ SF | 1.0 | 1 | 0 | 2 | 0 | 4.03 |
| Sep 4 | @ COL | 1.0 | 1 | 0 | 0 | 2 | 4.11 |
| Sep 3 | @ LAD | 0.1 | 2 | 2 | 1 | 0 | 4.18 |
| Sep 2 | @ LAD | 1.0 | 0 | 0 | 0 | 1 | 3.88 |