Kansas City Royals· #47· Pitcher
Mason Black
Bats R · Throws R·Age 26 (Dec 10, 1999)·6' 3", 228 lb·Scranton, PA, USA
2026 Pitching
ERA
4.31
WHIP
1.60
IP
31.1
K%
13.4
BB%
14.1
K/9
5.46
W-L
0-0
GS
0
SV
0
HLD
0
DiamondIQ WAR
31.3 IP · 2026
-0.6
-6.4 runs above replacement
FIP · 6.46 (park 1.02)0.0
vs replacement · RP, 31.3 IP-6.4
FIP-based runs above replacement, park-adjusted, scaled by innings over runs-per-win. Reliever leverage is simplified (v1). Full methodology.
Pitch Arsenal · Statcast
Sinker26% · 93.8 · 19% whiff
Four-Seam21% · 94.0 · 16% whiff
Sweeper20% · 83.0 · 16% whiff
Slider14% · 87.0 · 24% whiff
Cutter8% · 90.5 · 23% whiff
Curveball7% · 81.1 · 17% whiff
Changeup4% · 87.9 · 25% whiff
Career Pitching
| Yr | Tm | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | Kansas City Royals | 0 | 0 | 4.31 | 17 | 0 | 0 | 31.1 | 19 | 20 | 1.60 | 5.46 |
| 2025 | San Francisco Giants | 0 | 0 | 6.75 | 1 | 0 | 0 | 4.0 | 5 | 0 | 1.25 | 11.25 |
| 2024 | San Francisco Giants | 1 | 5 | 6.44 | 9 | 8 | 0 | 36.1 | 31 | 15 | 1.68 | 7.68 |
Recent Games
Aug 26 @ Toronto Blue JaysL
2.0 IP, 0 ER, 0 K, 0 BB
Aug 23 vs Detroit TigersW
0.2 IP, 3 ER, 0 K, 1 BB
Aug 18 vs AthleticsW
3.0 IP, 2 ER, 1 K, 3 BB
Aug 12 @ Los Angeles DodgersL
3.0 IP, 1 ER, 1 K, 2 BB
Aug 7 vs Chicago CubsL
5.0 IP, 2 ER, 2 K, 3 BB
Jun 18 vs St. Louis CardinalsW
2.0 IP, 2 ER, 0 K, 2 BB
Jun 15 @ Washington NationalsL
2.0 IP, 1 ER, 0 K, 1 BB
Jun 12 vs Houston AstrosL
2.1 IP, 1 ER, 3 K, 3 BB
Jun 10 vs Texas RangersL
1.2 IP, 1 ER, 2 K, 2 BB
Jun 7 @ Minnesota TwinsW
1.0 IP, 0 ER, 1 K, 0 BB