Late-inning arm with usable miss-bat shape
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 | 3.77 |
| ERA current pace | 4.50 |
| ERA rolling p50 | 4.12 |
| Observed weight | 48% |
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 | 50.6% | 266 | 100 | qualified |
| SL | 49.4% | 260 | 98 | qualified |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | +0.59 |
| K% Δ | -0.030 |
| Sample | 51.0 IP |
positive regression
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 31.4 | -- | -- |
| Batters Faced | 135 | -- | -- |
| K% | 26.9% | 19.6% to 33.6% | +/- 7.0% |
| BB% | 11.9% | 7.2% to 18.0% | +/- 5.4% |
| Whiff% | 28.1% | 22.5% to 36.1% | +/- 6.8% |
| HR/9 | 1.19 | 0.40 to 2.03 | +/- 0.82 |
| xwOBA Against | 0.309 | 0.224 to 0.358 | +/- 0.067 |
| Barrel% Allowed | 8.4% | 2.8% to 13.9% | +/- 5.6% |
| ERA | 3.91 | 2.31 to 6.74 | +/- 2.22 |
| FIP | 4.14 | 2.98 to 5.23 | +/- 1.13 |
| WHIP | 1.295 | 0.963 to 1.688 | +/- 0.362 |
| xwOBA | 0.263 |
| K% | 21.9% |
| BB% | 14.5% |
| Barrel | 10.7% |
| xwOBA | 0.238 |
| K% | 23.9% |
| BB% | 10.3% |
| Barrel | 8.6% |
