Boyle, Joe
Run-prevention profile built on workable command
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 3.92 |
| ERA current pace | 5.17 |
| ERA rolling p50 | 4.24 |
| Observed weight | 25% |
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
No Live State xwOBA snapshots are available for this player.
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 |
|---|---|---|---|---|
| SL | 52.8% | 114 | 106 | limited sample |
| FB | 24.5% | 53 | 105 | limited sample |
| SI | 22.7% | 49 | 98 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
No Live State delta is available for this player yet.
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 66.7 | -- | -- |
| Batters Faced | 305 | -- | -- |
| K% | 24.8% | 18.9% to 31.8% | +/- 6.4% |
| BB% | 11.5% | 8.6% to 14.9% | +/- 3.1% |
| Whiff% | 27.5% | 21.8% to 32.3% | +/- 5.2% |
| HR/9 | 1.02 | 0.47 to 1.72 | +/- 0.63 |
| xwOBA Against | 0.308 | 0.225 to 0.324 | +/- 0.050 |
| Barrel% Allowed | 7.2% | 4.0% to 10.0% | +/- 3.0% |
| ERA | 3.75 | 2.54 to 6.00 | +/- 1.73 |
| FIP | 3.89 | 2.60 to 4.65 | +/- 1.02 |
| WHIP | 1.332 | 1.029 to 1.637 | +/- 0.304 |
309 career BF
| xwOBA | 0.268 |
| K% | 21.9% |
| BB% | 13.9% |
| Barrel | 6.8% |
278 career BF
| xwOBA | 0.249 |
| K% | 22.5% |
| BB% | 10.1% |
| Barrel | 5.9% |