Hader, Josh
High-leverage relief profile with bat-miss
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
percentile
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 3.35 |
| ERA current pace | 0.00 |
| ERA rolling p50 | 3.18 |
| Observed weight | 5% |
Actual percentile with projection tick
100th = best in MLB.
Stuff+ and arsenal context
Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.
Arsenal optimization map
Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.
xwOBA allowed snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
No Live State xwOBA snapshots are available for this player.
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Usage mix, movement map, and Stuff+ composition
2025 pitch-level arsenal aggregates; current season takes over after 100 tracked pitches across at least 2 pitch types. Descriptive pitch-type Stuff+ composition. Not a promoted predictive metric.
| Pitch | Usage | Pitches | Stuff+ | Status |
|---|---|---|---|---|
| SI | 88.9% | 16 | 108 | limited sample |
| SL | 11.1% | 2 | 95 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
No Live State delta is available for this player yet.
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 39.7 | -- | -- |
| Batters Faced | 160 | -- | -- |
| K% | 31.7% | 26.2% to 40.8% | +/- 7.3% |
| BB% | 10.4% | 5.0% to 14.6% | +/- 4.8% |
| Whiff% | 34.5% | 29.4% to 40.5% | +/- 5.6% |
| HR/9 | 1.16 | 0.37 to 2.38 | +/- 1.01 |
| xwOBA Against | 0.272 | 0.179 to 0.335 | +/- 0.078 |
| Barrel% Allowed | 9.0% | 4.0% to 13.5% | +/- 4.8% |
| ERA | 3.52 | 1.21 to 5.45 | +/- 2.12 |
| FIP | 3.36 | 2.01 to 7.69 | +/- 2.84 |
| WHIP | 1.170 | 0.816 to 1.506 | +/- 0.345 |
559 career BF
| xwOBA | 0.224 |
| K% | 31.5% |
| BB% | 8.8% |
| Barrel | 8.0% |
1625 career BF
| xwOBA | 0.242 |
| K% | 32.5% |
| BB% | 9.7% |
| Barrel | 9.8% |