Ryan Rolison
RPQualifiedChicago Cubs · NL · Age 29 · Bats R / Throws L · 38.0 IP · 152 BF
— NeutralHOLDRank 455 of 617 pitchers by opportunity score
Opportunity Score
5
+3.2 last 7 days
HOLDProduction matches the underlying process.
No diagnostic pattern fires — the profile is stable year over year.
W-L
5-1
SV
1
IP
38.0
K
37
BB
17
ERA
2.61
WHIP
1.26
Edge breakdown
Expected
What the batted-ball quality deserves
xERA4.20
xwOBA.316
xBA.245
xSLG.372
xBABIP.281
Actual
What the scoreboard says
ERA2.61
wOBA.299
BA.233
SLG.346
BABIP.281
Difference
Actual − expected · percentile of the gap
ERA vs xERA−1.5910
wOBA against vs xwOBA−.01727
BA against vs xBA−.01233
SLG against vs xSLG−.02627
BABIP against vs xBABIP+.00050
Arsenal & pitch shapes
2026 usage, velocity, and movement per pitch · dashed ring = league average for that pitch type · movement in inches, pitcher's perspective
| Pitch | Usage | Velo | vs 2025 | Velo pctl | Spin | IVB | HB |
|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 43.4%(−3.2) | 94.6lg 94.5 | +1.7 | 5173 | 2283 | 14.5"lg 15.4 | 2.4"lg 7.8 |
| Curveball | 19.2%(−14.2) | 79.8lg 80.3 | +0.3 | 4051 | 2668 | -13.8"lg -10.3 | 9.6"lg 8.8 |
| Slider | 18.4%(+1.8) | 86.8lg 86.2 | +1.3 | 5606 | 2538 | -1.9"lg 1.5 | 4.6"lg 4.1 |
| SweeperNEW | 11.4% | 85.3lg 82.5 | — | 8448 | 2590 | 0.0"lg 0.9 | 13.1"lg 13.7 |
| SinkerNEW | 6.1% | 95.0lg 94.0 | — | 6540 | 2245 | 9.7"lg 8.4 | 11.6"lg 15.0 |
| Changeup | 1.6%(−1.8) | 88.9lg 86.6 | +1.6 | 7683 | 1678 | —lg 4.1 | —lg 14.0 |
IVB = induced vertical break (rise vs gravity-only). HB = horizontal break. Velo percentile is against all pitchers throwing the same pitch type. Sources: Savant pitch arsenals & movement leaderboards.
Mechanics Watch
2026 in gold · 2025 dashed · thin ticks = league average
Arm slot
85 pctl · +2.8° vs prior
What this can't see: Joint kinetics, hip-shoulder separation, and kinematic sequencing (Hawkeye/KinaTrax, team-internal — never estimated here). Stance angle and foot separation (Savant visuals only, no export). Release extension (column exported empty; needs pitch-level ingest).
Recent games
Percentile rankings
xERA
53
xwOBA Against
53
K%
69
BB%
22
Whiff%
20
FB Velocity
54
Hard-Hit% Against
16
Spin Rate
48
30-day rolling trends
Rolling ERA vs xERA
ERAxERA
Rolling Hard-Hit% Against
Rolling FB Velocity
Rolling Stuff Index
Rolling Whiff%