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 | 3.87 |
| ERA current pace | 3.13 |
| ERA rolling p50 | 3.50 |
| Observed weight | 50% |
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 | 65.1% | 183 | 101 | limited sample |
| SL | 28.5% | 80 | 102 | limited sample |
| SI | 6.4% | 18 | 95 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | -0.43 |
| K% Δ | -0.050 |
| Sample | 55.3 IP |
positive regression
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 38.7 | -- | -- |
| Batters Faced | 165 | -- | -- |
| K% | 34.2% | 28.4% to 43.4% | +/- 7.5% |
| BB% | 11.4% | 7.4% to 16.1% | +/- 4.4% |
| Whiff% | 35.0% | 31.1% to 42.1% | +/- 5.5% |
| HR/9 | 1.04 | 0.34 to 1.92 | +/- 0.79 |
| xwOBA Against | 0.275 | 0.214 to 0.371 | +/- 0.078 |
| Barrel% Allowed | 8.4% | 4.0% to 13.5% | +/- 4.7% |
| ERA | 3.56 | 1.82 to 6.52 | +/- 2.35 |
| FIP | 3.21 | 1.63 to 6.60 | +/- 2.48 |
| WHIP | 1.204 | 0.915 to 1.677 | +/- 0.381 |
| xwOBA | 0.283 |
| K% | 32.6% |
| BB% | 12.8% |
| Barrel | 9.9% |
| xwOBA | 0.262 |
| K% | 35.6% |
| BB% | 10.3% |
| Barrel | 8.2% |
