Ginn, J.t.
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 | 3.91 |
| ERA current pace | 3.19 |
| ERA rolling p50 | 3.53 |
| Observed weight | 52% |
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 |
|---|---|---|---|---|
| SI | 37.0% | 313 | 102 | qualified |
| SL | 17.3% | 146 | 103 | limited sample |
| FC | 17.3% | 146 | 96 | limited sample |
| CH | 15.3% | 129 | 99 | limited sample |
| FB | 13.1% | 111 | 95 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | -0.78 |
| K% Δ | -0.012 |
| Sample | 61.3 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 67.5 | -- | -- |
| Batters Faced | 293 | -- | -- |
| K% | 22.5% | 18.1% to 28.7% | +/- 5.3% |
| BB% | 7.5% | 4.9% to 10.6% | +/- 2.8% |
| Whiff% | 24.4% | 22.3% to 31.4% | +/- 4.5% |
| HR/9 | 1.36 | 0.77 to 2.31 | +/- 0.77 |
| xwOBA Against | 0.311 | 0.246 to 0.328 | +/- 0.041 |
| Barrel% Allowed | 8.2% | 4.5% to 11.9% | +/- 3.7% |
| ERA | 3.97 | 2.70 to 6.36 | +/- 1.83 |
| FIP | 3.99 | 2.87 to 4.56 | +/- 0.85 |
| WHIP | 1.260 | 1.026 to 1.549 | +/- 0.261 |
273 career BF
| xwOBA | 0.283 |
| K% | 18.8% |
| BB% | 7.8% |
| Barrel | 10.2% |
286 career BF
| xwOBA | 0.250 |
| K% | 23.6% |
| BB% | 5.6% |
| Barrel | 7.5% |