Martinez, Justin
High-leverage relief profile with bat-miss
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 | 3.74 |
| ERA current pace | 0.00 |
| ERA rolling p50 | 3.50 |
| Observed weight | 6% |
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
2025 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 | 50.0% | 17 | 95 | limited sample |
| SI | 44.1% | 15 | 122 | limited sample |
| SL | 5.9% | 2 | 127 | 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 | 40.0 | -- | -- |
| Batters Faced | 175 | -- | -- |
| K% | 32.0% | 25.3% to 41.9% | +/- 8.3% |
| BB% | 12.7% | 6.9% to 17.5% | +/- 5.3% |
| Whiff% | 30.5% | 25.0% to 38.0% | +/- 6.5% |
| HR/9 | 0.86 | 0.04 to 1.50 | +/- 0.73 |
| xwOBA Against | 0.286 | 0.209 to 0.364 | +/- 0.078 |
| Barrel% Allowed | 5.9% | 1.3% to 9.2% | +/- 3.9% |
| ERA | 3.05 | 0.78 to 6.18 | +/- 2.70 |
| FIP | 3.29 | 1.23 to 4.47 | +/- 1.62 |
| WHIP | 1.278 | 0.924 to 1.721 | +/- 0.399 |
204 career BF
| xwOBA | 0.259 |
| K% | 31.8% |
| BB% | 16.0% |
| Barrel | 3.8% |
253 career BF
| xwOBA | 0.246 |
| K% | 29.7% |
| BB% | 9.8% |
| Barrel | 3.1% |