Armside

Sean Sullivan

COL · LHP · SP · Age 23

Season
2026
G/GS
5/5
IP
22.1
BF
114
xwOBA
.335
K%
14.0%
BB%
9.6%
CSW%
25.7%
Whiff%
16.2%
Barrel%
9.5%
FB Velo
87.5

Below the qualifying minimum; percentiles rank qualified players only.

Percentile profile, 2026 regular season.

Sean SullivanPercentile profile · 2026 regular seasonAmong qualified pitchers · red is better, blue is worsexwOBA21.335xBA50.241xSLG20.431Avg EV5588.5HardHit%8034.5%Barrel%179.5%K%214.0%BB%369.6%Whiff%116.2%Chase%2328.1%Armside · Data: MLB Advanced Media / Baseball Savant

Arsenal, 2026

Pitchⓘ#ⓘUsageⓘVeloⓘSpinⓘIVBⓘHBⓘWhiff%ⓘCSW%ⓘxwOBAⓘRVⓘRV/100ⓘ
4-Seam Fastball FF18945.9%87.6225613.510.315.7%29.1%.385-6-3.0
Sweeper ST7217.5%75.42331-4.1-11.49.7%26.4%.256-3-4.6
Changeup CH6515.8%77.116769.110.022.2%18.5%.281-2-2.9
Cutter FC6215.0%82.722875.3-2.519.4%19.4%.20511.4

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ⓘ
2026COL235522.111414.0%9.6%4.4%25.7%.33587.5
Career——5522.111414.0%9.6%4.4%25.7%.33587.5