Gore, MacKenzie
Breaking-ball driven starter profile
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 4.01 |
| ERA current pace | 4.42 |
| ERA rolling p50 | 4.23 |
| Observed weight | 55% |
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 | 43.3% | 414 | 106 | qualified |
| CB | 22.6% | 216 | 102 | qualified |
| CH | 10.9% | 104 | 97 | limited sample |
| SL | 8.9% | 85 | 99 | limited sample |
| FC | 7.8% | 75 | 97 | limited sample |
| SI | 6.5% | 62 | 95 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +0.43 |
| K% Δ | -0.011 |
| Sample | 69.7 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 145.2 | -- | -- |
| Batters Faced | 643 | -- | -- |
| K% | 25.7% | 21.5% to 31.1% | +/- 4.8% |
| BB% | 8.6% | 6.7% to 11.2% | +/- 2.3% |
| Whiff% | 26.6% | 23.0% to 31.6% | +/- 4.3% |
| HR/9 | 1.22 | 0.83 to 1.95 | +/- 0.56 |
| xwOBA Against | 0.304 | 0.279 to 0.345 | +/- 0.033 |
| Barrel% Allowed | 8.6% | 6.7% to 12.4% | +/- 2.9% |
| ERA | 3.99 | 2.54 to 5.69 | +/- 1.57 |
| FIP | 3.91 | 2.88 to 4.55 | +/- 0.83 |
| WHIP | 1.296 | 1.104 to 1.676 | +/- 0.286 |
636 career BF
| xwOBA | 0.305 |
| K% | 25.0% |
| BB% | 8.8% |
| Barrel | 9.0% |
1876 career BF
| xwOBA | 0.314 |
| K% | 24.0% |
| BB% | 8.6% |
| Barrel | 9.4% |