Athletics· #31· Pitcher
Geoff Hartlieb “Hart”
Bats R · Throws R·Age 32 (Dec 9, 1993)·6' 5", 240 lb·Highland, IL, USA
2026 Pitching
ERA
4.82
WHIP
1.57
IP
28.0
K%
17.7
BB%
11.3
K/9
7.07
W-L
2-1
GS
0
SV
0
HLD
2
DiamondIQ WAR
28.0 IP · 2026
0.4
4.4 runs above replacement
FIP · 3.59 (park 1.10)0.0
vs replacement · RP, 28.0 IP+4.4
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Slider35% · 84.7 · 44% whiff
Four-Seam32% · 95.3 · 14% whiff
Cutter17% · 91.4 · 11% whiff
Sinker16% · 93.9 · 29% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Athletics | 2 | 1 | 4.82 | 18 | 0 | 0 | 28.0 | 22 | 14 | 1.57 | 7.07 |
| 2025 | — | 0 | 0 | 21.60 | 4 | 0 | 0 | 3.1 | 5 | 6 | 4.20 | 13.50 |
| 2025 | Detroit Tigers | 0 | 0 | 9.00 | 2 | 0 | 0 | 2.0 | 1 | 2 | 2.50 | 4.50 |
| 2025 | New York Yankees | 0 | 0 | 40.50 | 2 | 0 | 0 | 1.1 | 4 | 4 | 6.75 | 27.00 |
| 2024 | Colorado Rockies | 0 | 0 | 9.00 | 5 | 0 | 0 | 9.0 | 7 | 4 | 1.89 | 7.00 |
Recent Games
Sep 27 vs Houston AstrosL
1.2 IP, 1 ER, 1 K, 1 BB
Sep 25 vs Houston AstrosW
0.1 IP, 3 ER, 1 K, 2 BB
Sep 23 vs Los Angeles AngelsW
1.2 IP, 0 ER, 2 K, 1 BB
Sep 19 @ Cleveland GuardiansL
1.0 IP, 1 ER, 2 K, 0 BB
Sep 17 @ Tampa Bay RaysL
1.2 IP, 0 ER, 2 K, 0 BB
Sep 13 vs Seattle MarinersW
2.0 IP, 0 ER, 2 K, 0 BB
Sep 8 vs Toronto Blue JaysL
2.0 IP, 0 ER, 2 K, 1 BB
Sep 5 @ Seattle MarinersW
1.0 IP, 1 ER, 2 K, 0 BB
Sep 4 @ Seattle MarinersW
1.1 IP, 0 ER, 1 K, 0 BB
Sep 2 @ Texas RangersW
2.0 IP, 0 ER, 1 K, 0 BB