Mantiply, Joe
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 | 4.50 |
| ERA current pace | 2.04 |
| ERA rolling p50 | 3.89 |
| Observed weight | 25% |
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
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 | 45.8% | 121 | 100 | limited sample |
| CB | 27.7% | 73 | 101 | limited sample |
| CH | 26.5% | 70 | 101 | 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 | 34.9 | -- | -- |
| Batters Faced | 155 | -- | -- |
| K% | 19.7% | 14.7% to 29.2% | +/- 7.2% |
| BB% | 7.9% | 4.1% to 11.5% | +/- 3.7% |
| Whiff% | 23.3% | 18.0% to 31.1% | +/- 6.6% |
| HR/9 | 1.08 | 0.13 to 1.78 | +/- 0.83 |
| xwOBA Against | 0.300 | 0.247 to 0.331 | +/- 0.042 |
| Barrel% Allowed | 7.8% | 2.9% to 11.0% | +/- 4.0% |
| ERA | 4.32 | 2.06 to 7.38 | +/- 2.66 |
| FIP | 3.68 | 1.98 to 5.26 | +/- 1.64 |
| WHIP | 1.298 | 0.998 to 1.676 | +/- 0.339 |
442 career BF
| xwOBA | 0.240 |
| K% | 20.4% |
| BB% | 5.5% |
| Barrel | 6.3% |
609 career BF
| xwOBA | 0.270 |
| K% | 18.1% |
| BB% | 7.1% |
| Barrel | 7.0% |