Breaking-ball driven starter profile
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 4.41 |
| ERA current pace | 2.37 |
| ERA rolling p50 | 3.75 |
| Observed weight | 32% |
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 | 39.9% | 148 | 104 | limited sample |
| SL | 18.1% | 67 | 102 | limited sample |
| CB | 17.3% | 64 | 101 | limited sample |
| CH | 14.0% | 52 | 108 | limited sample |
| FC | 8.6% | 32 | 103 | limited sample |
| SI | 2.2% | 8 | 103 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | -2.05 |
| K% Δ | -0.016 |
| Sample | 28.3 IP |
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 137.1 | -- | -- |
| Batters Faced | 618 | -- | -- |
| K% | 23.3% | 18.1% to 29.6% | +/- 5.8% |
| BB% | 6.9% | 4.5% to 8.6% | +/- 2.0% |
| Whiff% | 24.4% | 20.0% to 28.9% | +/- 4.5% |
| HR/9 | 1.32 | 0.82 to 2.37 | +/- 0.77 |
| xwOBA Against | 0.306 | 0.271 to 0.355 | +/- 0.042 |
| Barrel% Allowed | 8.0% | 4.5% to 13.0% | +/- 4.3% |
| ERA | 4.42 | 3.37 to 6.75 | +/- 1.69 |
| FIP | 3.78 | 2.66 to 5.55 | +/- 1.44 |
| WHIP | 1.284 | 1.098 to 1.648 | +/- 0.275 |
| xwOBA | 0.311 |
| K% | 20.5% |
| BB% | 6.5% |
| Barrel | 11.0% |
| xwOBA | 0.276 |
| K% | 21.0% |
| BB% | 4.9% |
| Barrel | 8.8% |
