Armside

Mason Black

KC · RHP · RP · Age 26

Season
2026
G/GS
17/0
IP
31.1
BF
142
xwOBA
.387
K%
13.4%
BB%
14.1%
CSW%
26.1%
Whiff%
18.5%
Barrel%
9.9%
FB Velo
93.9

Below the qualifying minimum; percentiles rank qualified players only.

Percentile profile, 2026 regular season.

Mason BlackPercentile profile · 2026 regular seasonAmong qualified pitchers · red is better, blue is worsexwOBA1.387xBA5.284xSLG5.482Avg EV191.3HardHit%146.5%Barrel%129.9%K%113.4%BB%314.1%Whiff%418.5%Chase%121.4%Armside · Data: MLB Advanced Media / Baseball Savant

Arsenal, 2026

Pitchⓘ#ⓘUsageⓘVeloⓘSpinⓘIVBⓘHBⓘWhiff%ⓘCSW%ⓘxwOBAⓘRVⓘRV/100ⓘ
Sinker SI14425.9%93.820928.7-16.518.6%32.6%.41210.9
4-Seam Fastball FF11821.2%94.0213813.9-12.515.7%18.6%.424-4-3.8
Sweeper ST11320.3%83.02616-2.912.916.7%23.9%.32311.2
Slider SL7313.1%86.923601.6-0.124.2%28.8%.420-1-1.4
Cutter FC468.3%90.421527.6-4.021.4%23.9%.473-1-2.6
Curveball CU397.0%81.22550-6.13.515.8%25.6%.275-2-4.3

Pitch types with 25+ pitches; knuckle curves and slow curves shown as curveballs. Grey rates: under 405 pitches of the type (Savant’s qualifying line, 2.5 per team game).

Season by season

SeasonⓘTeamⓘAgeⓘGⓘGSⓘIPⓘBFⓘK%ⓘBB%ⓘK−BB%ⓘCSW%ⓘxwOBAⓘFB Veloⓘ
2024SF249836.116918.3%8.9%9.5%25.9%.37192.5
2025SF25104.01926.3%0.0%26.3%24.3%.33092.7
2026KC2617031.114213.4%14.1%-0.7%26.1%.38793.9
Career——27871.233016.7%10.6%6.1%25.9%.37593.0