Juenger, Hayden
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 | 3.60 |
| ERA current pace | 27.00 |
| ERA rolling p50 | 4.26 |
| Observed weight | 3% |
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% | 18 | 97 | limited sample |
| SL | 33.3% | 12 | 106 | limited sample |
| CH | 16.7% | 6 | 74 | 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 | 29.5 | -- | -- |
| Batters Faced | 125 | -- | -- |
| K% | 18.6% | 5.1% to 26.4% | +/- 10.7% |
| BB% | 7.3% | 0.1% to 11.5% | +/- 5.7% |
| Whiff% | 22.4% | 2.8% to 27.8% | +/- 12.5% |
| HR/9 | 1.70 | 0.05 to 2.66 | +/- 1.30 |
| xwOBA Against | 0.283 | 0.001 to 0.306 | +/- 0.152 |
| Barrel% Allowed | 8.9% | 2.3% to 11.6% | +/- 4.7% |
| ERA | 4.12 | 0.00 to 5.49 | +/- 2.74 |
| FIP | 4.52 | 1.47 to 7.13 | +/- 2.83 |
| WHIP | 1.265 | 0.198 to 1.394 | +/- 0.598 |
5 career BF
| xwOBA | 0.003 |
| K% | 6.5% |
| BB% | 0.1% |
| Barrel | 4.9% |
11 career BF
| xwOBA | 0.003 |
| K% | 6.9% |
| BB% | 0.1% |
| Barrel | 5.0% |