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 | 4.21 |
| ERA current pace | 4.19 |
| ERA rolling p50 | 4.20 |
| Observed weight | 40% |
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 |
|---|---|---|---|---|
| FC | 53.5% | 304 | 99 | qualified |
| SL | 46.5% | 264 | 107 | qualified |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | -0.08 |
| K% Δ | +0.058 |
| Sample | 37.0 IP |
positive regression
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 44.3 | -- | -- |
| Batters Faced | 195 | -- | -- |
| K% | 21.5% | 14.6% to 28.3% | +/- 6.8% |
| BB% | 8.6% | 5.0% to 12.1% | +/- 3.5% |
| Whiff% | 24.8% | 20.0% to 31.7% | +/- 5.9% |
| HR/9 | 1.12 | 0.58 to 2.09 | +/- 0.75 |
| xwOBA Against | 0.317 | 0.277 to 0.383 | +/- 0.053 |
| Barrel% Allowed | 7.2% | 4.1% to 10.6% | +/- 3.2% |
| ERA | 4.27 | 2.47 to 7.29 | +/- 2.41 |
| FIP | 4.03 | 2.78 to 6.19 | +/- 1.71 |
| WHIP | 1.427 | 1.132 to 1.857 | +/- 0.362 |
| xwOBA | 0.320 |
| K% | 17.9% |
| BB% | 8.7% |
| Barrel | 6.2% |
| xwOBA | 0.319 |
| K% | 18.6% |
| BB% | 7.8% |
| Barrel | 6.8% |
