McDermott, Chayce
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 | 5.61 |
| ERA current pace | 0.00 |
| ERA rolling p50 | 5.52 |
| Observed weight | 2% |
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 |
|---|---|---|---|---|
| FC | 62.5% | 10 | 97 | limited sample |
| FB | 31.2% | 5 | 92 | limited sample |
| SL | 6.2% | 1 | 10 | 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 | 58.2 | -- | -- |
| Batters Faced | 293 | -- | -- |
| K% | 21.5% | 10.8% to 27.1% | +/- 8.2% |
| BB% | 10.0% | 6.5% to 14.3% | +/- 3.9% |
| Whiff% | 23.7% | 15.0% to 27.4% | +/- 6.2% |
| HR/9 | 1.49 | 0.72 to 2.34 | +/- 0.81 |
| xwOBA Against | 0.324 | 0.250 to 0.397 | +/- 0.074 |
| Barrel% Allowed | 8.1% | 4.1% to 11.6% | +/- 3.7% |
| ERA | 4.41 | 2.20 to 9.07 | +/- 3.44 |
| FIP | 4.43 | 2.88 to 6.39 | +/- 1.76 |
| WHIP | 1.414 | 1.139 to 1.825 | +/- 0.343 |
41 career BF
| xwOBA | 0.288 |
| K% | 12.5% |
| BB% | 12.3% |
| Barrel | 9.2% |
46 career BF
| xwOBA | 0.260 |
| K% | 13.4% |
| BB% | 8.9% |
| Barrel | 7.2% |