High-leverage relief profile with bat-miss
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 3.33 |
| ERA current pace | 2.84 |
| ERA rolling p50 | 3.11 |
| Observed weight | 45% |
100th = best in MLB.
Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.
Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.
Live snapshot series; true 50/100 PA windows require PA-level logs
Aggregate zone metrics from seasonal Statcast leaderboards.
2026 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 |
|---|---|---|---|---|
| FB | 81.7% | 325 | 109 | qualified |
| SL | 18.3% | 73 | 104 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | -0.59 |
| K% Δ | +0.037 |
| Sample | 48.3 IP |
positive regression
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 43.1 | -- | -- |
| Batters Faced | 175 | -- | -- |
| K% | 29.3% | 26.2% to 43.9% | +/- 8.8% |
| BB% | 7.7% | 4.1% to 11.4% | +/- 3.6% |
| Whiff% | 27.5% | 24.2% to 36.2% | +/- 6.0% |
| HR/9 | 0.98 | 0.17 to 1.40 | +/- 0.61 |
| xwOBA Against | 0.291 | 0.239 to 0.330 | +/- 0.046 |
| Barrel% Allowed | 7.2% | 3.1% to 10.4% | +/- 3.6% |
| ERA | 3.45 | 1.51 to 5.29 | +/- 1.89 |
| FIP | 3.42 | 1.14 to 4.51 | +/- 1.69 |
| WHIP | 1.163 | 0.845 to 1.554 | +/- 0.355 |
| xwOBA | 0.242 |
| K% | 35.8% |
| BB% | 7.0% |
| Barrel | 5.9% |
| xwOBA | 0.248 |
| K% | 30.4% |
| BB% | 5.6% |
| Barrel | 6.0% |
