Athletics· #52· Pitcher
Seth Johnson
Bats R · Throws R·Age 28 (Sep 19, 1998)·6' 1", 205 lb·Concord, NC, USA
2026 Pitching
ERA
5.88
WHIP
1.69
IP
33.2
K%
25.3
BB%
12.7
K/9
10.69
W-L
1-0
GS
1
SV
0
HLD
0
DiamondIQ WAR
33.7 IP · 2026
0.1
0.5 runs above replacement
FIP · 4.610.0
vs replacement · RP, 33.7 IP+0.5
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Four-Seam46% · 97.7 · 27% whiff
Slider34% · 88.3 · 31% whiff
Sinker9% · 95.6 · 12% whiff
Sweeper5% · 84.7 · 30% whiff
Curveball5% · 82.3 · 50% whiff
Splitter1% · 91.1 · 0% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | — | 1 | 0 | 5.88 | 28 | 1 | 0 | 33.2 | 40 | 20 | 1.69 | 10.69 |
| 2026 | Athletics | 0 | 0 | 6.23 | 12 | 1 | 0 | 17.1 | 20 | 6 | 1.62 | 10.38 |
| 2026 | Philadelphia Phillies | 1 | 0 | 5.51 | 16 | 0 | 0 | 16.1 | 20 | 14 | 1.78 | 11.02 |
| 2025 | Philadelphia Phillies | 1 | 1 | 4.26 | 10 | 0 | 0 | 12.2 | 17 | 4 | 1.18 | 12.08 |
| 2024 | Philadelphia Phillies | 0 | 1 | 34.71 | 1 | 1 | 0 | 2.1 | 0 | 3 | 4.71 | 0.00 |
Recent Games
Sep 27 vs Houston AstrosL
1.2 IP, 0 ER, 2 K, 2 BB
Sep 25 vs Houston AstrosW
1.0 IP, 1 ER, 1 K, 0 BB
Sep 22 vs Los Angeles AngelsW
2.2 IP, 1 ER, 1 K, 1 BB
Sep 18 @ Cleveland GuardiansL
1.0 IP, 1 ER, 1 K, 0 BB
Sep 16 @ Tampa Bay RaysL
2.1 IP, 0 ER, 4 K, 0 BB
Sep 12 vs Seattle MarinersL
2.0 IP, 2 ER, 1 K, 0 BB
Sep 6 @ Seattle MarinersL
2.0 IP, 0 ER, 4 K, 0 BB
Aug 17 @ Kansas City RoyalsL
1.0 IP, 2 ER, 1 K, 0 BB
Aug 12 vs Tampa Bay RaysL
1.0 IP, 0 ER, 0 K, 1 BB
Aug 10 vs Tampa Bay RaysL
0.0 IP, 4 ER, 0 K, 1 BB