Athletics· #63· Pitcher
Mason Barnett
Bats R · Throws R·Age 25 (Nov 7, 2000)·6' 0", 218 lb·Kennesaw, GA, USA
2026 Pitching
ERA
7.08
WHIP
1.62
IP
40.2
K%
20.5
BB%
13.0
K/9
8.41
W-L
1-4
GS
4
SV
2
HLD
0
DiamondIQ WAR
40.7 IP · 2026
-0.9
-9.2 runs above replacement
FIP · 6.96 (park 1.09)0.0
vs replacement · RP, 40.7 IP-9.2
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-Seam49% · 95.0 · 20% whiff
Slider20% · 87.3 · 28% whiff
Sweeper15% · 83.5 · 20% whiff
Curveball10% · 79.2 · 14% whiff
Changeup7% · 85.4 · 37% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Athletics | 1 | 4 | 7.08 | 18 | 4 | 2 | 40.2 | 38 | 24 | 1.62 | 8.41 |
| 2025 | Athletics | 1 | 1 | 6.85 | 5 | 5 | 0 | 22.1 | 18 | 11 | 1.66 | 7.25 |
Recent Games
Aug 17 @ Kansas City RoyalsL
2.2 IP, 6 ER, 2 K, 4 BB
Aug 11 vs Tampa Bay RaysL
4.0 IP, 5 ER, 0 K, 3 BB
Aug 6 @ Cincinnati RedsL
4.1 IP, 5 ER, 7 K, 3 BB
Jul 30 vs Boston Red SoxL
5.0 IP, 3 ER, 6 K, 1 BB
Jul 25 @ Minnesota TwinsL
3.1 IP, 2 ER, 2 K, 1 BB
Jul 10 @ Chicago White SoxL
1.0 IP, 3 ER, 0 K, 1 BB
Jul 8 @ Detroit TigersL
1.0 IP, 0 ER, 0 K, 2 BB
Jul 5 vs Miami MarlinsL
2.0 IP, 2 ER, 0 K, 0 BB
Jul 3 vs Miami MarlinsL
2.0 IP, 4 ER, 2 K, 2 BB
Jun 27 @ Los Angeles AngelsL
0.2 IP, 0 ER, 0 K, 0 BB