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 | 3.47 |
| ERA current pace | 1.77 |
| ERA rolling p50 | 2.67 |
| Observed weight | 47% |
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 | 41.2% | 174 | 106 | limited sample |
| SI | 39.3% | 166 | 111 | limited sample |
| SL | 19.4% | 82 | 104 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
| ERA Δ | -1.48 |
| K% Δ | -0.022 |
| Sample | 50.3 IP |
positive regression
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 40.2 | -- | -- |
| Batters Faced | 163 | -- | -- |
| K% | 34.2% | 27.4% to 43.2% | +/- 7.9% |
| BB% | 10.9% | 5.7% to 14.8% | +/- 4.6% |
| Whiff% | 30.5% | 26.3% to 37.6% | +/- 5.6% |
| HR/9 | 1.01 | 0.37 to 1.70 | +/- 0.67 |
| xwOBA Against | 0.281 | 0.192 to 0.336 | +/- 0.072 |
| Barrel% Allowed | 8.2% | 3.3% to 12.6% | +/- 4.6% |
| ERA | 3.26 | 0.90 to 5.20 | +/- 2.15 |
| FIP | 2.85 | 1.48 to 4.19 | +/- 1.35 |
| WHIP | 1.191 | 0.820 to 1.548 | +/- 0.364 |
| xwOBA | 0.234 |
| K% | 33.2% |
| BB% | 9.3% |
| Barrel | 5.3% |
| xwOBA | 0.249 |
| K% | 34.3% |
| BB% | 10.1% |
| Barrel | 7.3% |
