Hill, Tim
Late-inning arm with usable miss-bat shape
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
percentile
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 4.29 |
| ERA current pace | 4.60 |
| ERA rolling p50 | 4.45 |
| Observed weight | 51% |
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 | 81.9% | 429 | 105 | qualified |
| SL | 9.9% | 52 | 97 | limited sample |
| FB | 8.2% | 43 | 96 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +0.47 |
| K% Δ | -0.043 |
| Sample | 60.0 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 40.4 | -- | -- |
| Batters Faced | 169 | -- | -- |
| K% | 14.7% | 7.4% to 20.9% | +/- 6.8% |
| BB% | 7.4% | 4.2% to 11.3% | +/- 3.6% |
| Whiff% | 14.0% | 10.6% to 21.9% | +/- 5.6% |
| HR/9 | 1.27 | 0.32 to 1.99 | +/- 0.84 |
| xwOBA Against | 0.326 | 0.256 to 0.379 | +/- 0.061 |
| Barrel% Allowed | 7.1% | 2.6% to 10.5% | +/- 4.0% |
| ERA | 4.13 | 2.01 to 6.68 | +/- 2.33 |
| FIP | 4.55 | 2.84 to 6.37 | +/- 1.77 |
| WHIP | 1.363 | 0.998 to 1.677 | +/- 0.340 |
829 career BF
| xwOBA | 0.263 |
| K% | 12.4% |
| BB% | 6.1% |
| Barrel | 3.9% |
952 career BF
| xwOBA | 0.303 |
| K% | 11.1% |
| BB% | 7.1% |
| Barrel | 6.6% |