Imanaga, Shota
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 | 3.84 |
| ERA current pace | 4.04 |
| ERA rolling p50 | 3.95 |
| Observed weight | 57% |
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 | 66.3% | 382 | 106 | qualified |
| SL | 21.7% | 125 | 99 | limited sample |
| SI | 9.4% | 54 | 92 | limited sample |
| CB | 2.6% | 15 | 107 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +0.18 |
| K% Δ | +0.044 |
| Sample | 79.3 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 74.7 | -- | -- |
| Batters Faced | 303 | -- | -- |
| K% | 20.9% | 17.8% to 27.0% | +/- 4.6% |
| BB% | 5.3% | 2.8% to 7.1% | +/- 2.1% |
| Whiff% | 22.6% | 19.5% to 27.7% | +/- 4.1% |
| HR/9 | 1.55 | 1.02 to 2.37 | +/- 0.68 |
| xwOBA Against | 0.316 | 0.276 to 0.348 | +/- 0.036 |
| Barrel% Allowed | 8.8% | 5.9% to 12.9% | +/- 3.5% |
| ERA | 3.86 | 2.49 to 5.07 | +/- 1.29 |
| FIP | 4.29 | 3.28 to 4.53 | +/- 0.62 |
| WHIP | 1.161 | 0.843 to 1.460 | +/- 0.309 |
312 career BF
| xwOBA | 0.263 |
| K% | 22.7% |
| BB% | 4.3% |
| Barrel | 7.5% |
1001 career BF
| xwOBA | 0.286 |
| K% | 20.4% |
| BB% | 3.9% |
| Barrel | 10.3% |