Sean O'Sullivan
P
Syracuse Chiefs
+0.0
WAR
Age 38
RHP
6'1" / 245 lbs
AAA
ERA—
FIP—
xFIP—
SIERA—
K%—
BB%—
K-BB%—
IP—
trajectory · insufficient sample
FB Velo
p1091.4
Whiff%
p1013.7%
K%
p1013.3%
xwOBA vs
p100.385
Career (MLE) + Projections
Park-neutral MLB-equivalent. MiLB translated via MLE factors. FIP-based WAR vs replacement FIP=5.3 (SP) / 4.95 (RP, <80 IP). FIP+ = runs above league-avg FIP · REP = replacement-level bonus.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | K% | BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | 27 | MLB | Philadelphia Phillies | 23 | 23 | 132 | 580 | 81 | 35 | 19 | 12.7% | 6.2% | 3.3% | 4.72 | 4.63 | +1.0 |
| 2016 | 28 | MLB | Boston Red Sox | 24 | 23 | 127 | 539 | 98 | 33 | 10 | 16.3% | 6.4% | 2.0% | 4.48 | 3.62 | +2.4 |
| 2017 | 29 | AAA | Syracuse Chiefs | 10 | 8 | 36 | 170 | 23 | 19 | 6 | 11.9% | 11.7% | 3.9% | 5.80 | 5.74 | -0.3 |
| ▸ Career (all levels · actual + projected) | ||||||||||||||||
| Career | — | 57 | 54 | 294 | 1289 | 182 | 90 | 37 | 14.1% | 7.0% | 2.8% | 4.74 | 4.35 | +3.2 | ||
| / 200 IP | — | 39 | 37 | 200 | 877 | 124 | 61 | 25 | 14.1% | 7.0% | 2.8% | 4.74 | 4.35 | +2.1 | ||
Contract
No contract data on file. Pre-MLB players and minor-league free agents do not yet have salary projections — entries are added at first 40-man roster placement.