Sean O'Sullivan
AI-generated analysis coming soon.
Career · Pitching
7 seasons| Year | Team | G | IP | W | L | ERA | ERA+ | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|
| 2009 | LAA | 12 | 51.7 | 4 | 2 | 5.92 | 73 | 29 | 1.471 |
| 2010 | KC | 19 | 83.7 | 4 | 6 | 5.49 | 74 | 43 | 1.446 |
| 2011 | KC | 12 | 58.3 | 2 | 6 | 7.25 | 54 | 19 | 1.783 |
| 2013 | SD | 7 | 25.0 | 0 | 2 | 3.96 | 97 | 12 | 1.800 |
| 2014 | PHI | 3 | 12.7 | 0 | 1 | 6.39 | 59 | 7 | 1.342 |
| 2015 | PHI | 13 | 71.0 | 1 | 6 | 6.08 | 65 | 35 | 1.606 |
| 2016 | BOS | 5 | 21.3 | 2 | 0 | 6.75 | 62 | 13 | 1.688 |
| Career | 71 | 323.7 | 13 | 23 | — | — | 158 | — | |
Each pitch type this pitcher throws regularly, placed by how the ball moves — sideways break across, rise or drop down the side. Each dotted ring holds about the middle 85% of the league’s pitches of that type, so a cluster sitting outside its ring is movement most pitchers don’t have.
The dots — a sample of this pitcher’s regular-season pitches, placed by movement: left–right is horizontal break, up–down is induced vertical break (what the pitch does beyond gravity). The view is handedness-neutral — positive break is toward the pitcher’s arm side for lefties and righties alike, so every sinker runs right and every sweeper breaks left, whoever throws it.
The dotted rings — about the middle 85% of where each pitch type lands league-wide (a 2-standard-deviation spread), measured from 7.5 million regular-season pitches since 2015. A cluster sitting well outside its ring is movement most of the league doesn’t get. Spring training and the postseason are excluded.
Matchups, projections, comps — grounded in Lahman, Retrosheet, and Statcast.