Pitcher · 2026
Ryan Rolison
- Age
- 29
- B/T
- R/L
- Height
- 6' 2"
- Weight
- 213 lb
- Number
- #33
- Born
- July 11, 1997 in Jackson, TN, USA
- MLB debut
- May 13, 2025
- Drafted
- 2018, round 1
- College
- Mississippi
- High school
- University
- dbWAR
- -.4 2 season(s)
- IP
- 46.0
- ERA
- 2.35
- FIP
- 3.52
- K/9
- 9.0
- FIP−
- 84 100 = avg
Ryan Rolison is a relief pitcher for the Chicago Cubs. In 2026 he struck out 46 batters over 46.0 innings across 41 appearances, going 6-1. His ERA of 2.35 was 43.8% lower than the league average of 4.18 — the second best on his team, and 42nd of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 3.52 FIP suggests that his ERA had some help behind him. He missed bats on 22.4% of swings (9.9% of every pitch he threw), walked 11.0% of the batters he faced and struck out 25.3%. His 0.6 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2026.
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 82 | 72 | 12 | 0 | 8 | 27 | .167 | .247 | .181 | .208 | 32.9% |
| vs RHB | 100 | 88 | 24 | 4 | 12 | 19 | .273 | .360 | .443 | .357 | 19.0% |
Pitch sequencing
What Ryan Rolison throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Ryan Rolison throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2026.
| Four-Seam Fastball | 297 | 94.6 | 2,284 | 45.1% | 14.8% | |
| Curveball | 125 | 79.7 | 2,668 | 45.6% | 25.9% | |
| Slider | 114 | 86.8 | 2,536 | 43.0% | 17.3% | |
| Sweeper | 95 | 85.3 | 2,588 | 45.3% | 42.9% | |
| Sinker | 64 | 95.0 | 2,228 | 62.5% | 28.6% | |
| Unknown | 13 | — | — | 46.2% | 14.3% |
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 41 | 2 | 46.0 | 6 | 1 | 1 | 36 | 12 | 46 | 20 | 2.35 | 3.52 | 1.22 | 9.0 | 3.9 | 56 | 84 | 0.6 | |
| 2025 | 31 | 1 | 42.1 | 1 | 0 | 0 | 55 | 33 | 25 | 20 | 7.02 | 6.75 | 1.77 | 5.3 | 4.3 | 169 | 162 | -1.0 |
Head to head
Put Ryan Rolison beside up to three others.
Similar players
Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.