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Pitcher · Chicago Cubs

Ryan Rolison

LHP · Throws Left · Age 29Swingman
ERA
3.14
FIP
–
IP
63.0
W-L
9-2
WHIP
1.29
K%
21.5
BB%
10.9
GB%
–
K/9
7.9
HR/9
0.9
Drafted by the Colorado Rockies in 2018 (round 1), he was claimed off waivers by the Chicago Cubs from the Chicago White Sox in January 2026. He made his MLB debut on May 13, 2025.Facts: MLB StatsAPI (people · transactions)
No scheduled start today. The model projection and lineup matchup appear on start days.

Four-Seam Fastball

FF · lead pitch

42% of pitches · .353 xwOBA allowed · 198 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
0%3%5%5%2%2%5%8%5%2%7%14%14%8%2%2%2%2%1%0%5%3%3%1%0%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
–.522.366.181.695.146.495.283.367.510.496.217.342.373–.542.051.700.309––.707–.875–
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
–.014.017.008.015.003.024.023.020.011.034.031.049.028–.012.001.014.002––.022–.008–
Low risk · Average · High-risk zone
Four-Seam Fastball (42% usage) has allowed .353 xwOBA over 198 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

7 pitch types · 1,665-pitch sample · 2026/2025 blend, weighted 4/3/1

Four-Seam Fastball FF
42% usage · 14% whiff · .353 xwOBA · 94.7 mph
Curveball CU
22% usage · 21% whiff · .345 xwOBA · 79.5 mph
Slider SL
14% usage · 13% whiff · .356 xwOBA · 86.7 mph
Sweeper ST
10% usage · 29% whiff · .211 xwOBA · 85.0 mph
Sinker SI
10% usage · 16% whiff · .232 xwOBA · 95.0 mph
Changeup CH
2% usage · .265 xwOBA
Unknown UN
1% usage · .541 xwOBA
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
1020309/129/149/169/199/229/239/259/29
Four-Seam FastballCurveballSlider
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB21.1 .275 200
vs. RHB16.5 .375 239
Live · client-hydrated

Market lines

current pick’em lines by book · updates through the day

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Live · client-hydrated

DFS picks

today’s picks for this pitcher, probability-sorted · graded nightly

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