Leasure, Jordan
Late-inning arm with usable miss-bat shape
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 3.58 |
| ERA current pace | 6.11 |
| ERA rolling p50 | 4.26 |
| Observed weight | 27% |
Actual percentile with projection tick
100th = best in MLB.
Stuff+ and arsenal context
Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; Arsenal Decomposition remains descriptive support under Stuff+.
Arsenal optimization map
Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.
xwOBA allowed snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Usage mix, movement map, and Stuff+ composition
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 | 53.5% | 147 | 105 | limited sample |
| SL | 42.5% | 117 | 100 | limited sample |
| SI | 4.0% | 11 | 109 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +2.15 |
| K% Δ | -0.038 |
| Sample | 21.7 IP |
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 63.9 | -- | -- |
| Batters Faced | 278 | -- | -- |
| K% | 26.2% | 20.9% to 34.0% | +/- 6.6% |
| BB% | 10.1% | 6.2% to 14.1% | +/- 4.0% |
| Whiff% | 26.1% | 22.6% to 32.7% | +/- 5.1% |
| HR/9 | 1.24 | 0.78 to 2.33 | +/- 0.78 |
| xwOBA Against | 0.298 | 0.235 to 0.344 | +/- 0.055 |
| Barrel% Allowed | 8.5% | 4.1% to 12.9% | +/- 4.4% |
| ERA | 3.96 | 2.09 to 6.18 | +/- 2.04 |
| FIP | 3.86 | 2.67 to 5.51 | +/- 1.42 |
| WHIP | 1.246 | 1.019 to 1.648 | +/- 0.314 |
186 career BF
| xwOBA | 0.281 |
| K% | 24.1% |
| BB% | 12.3% |
| Barrel | 9.8% |
259 career BF
| xwOBA | 0.272 |
| K% | 25.0% |
| BB% | 9.0% |
| Barrel | 9.5% |