Waldichuk, Ken
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 | 4.34 |
| ERA current pace | 6.75 |
| ERA rolling p50 | 4.78 |
| Observed weight | 18% |
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 |
|---|---|---|---|---|
| CB | 40.9% | 61 | 102 | limited sample |
| FB | 32.9% | 49 | 85 | limited sample |
| FC | 18.1% | 27 | 99 | limited sample |
| SL | 6.7% | 10 | 94 | limited sample |
| CH | 1.3% | 2 | 91 | 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 | 70.5 | -- | -- |
| Batters Faced | 326 | -- | -- |
| K% | 20.3% | 16.0% to 24.5% | +/- 4.2% |
| BB% | 8.6% | 5.7% to 12.2% | +/- 3.3% |
| Whiff% | 23.4% | 18.4% to 26.0% | +/- 3.8% |
| HR/9 | 1.73 | 0.89 to 2.09 | +/- 0.60 |
| xwOBA Against | 0.311 | 0.249 to 0.342 | +/- 0.046 |
| Barrel% Allowed | 7.9% | 4.3% to 10.3% | +/- 3.0% |
| ERA | 4.48 | 2.60 to 6.11 | +/- 1.75 |
| FIP | 4.71 | 3.16 to 5.94 | +/- 1.39 |
| WHIP | 1.423 | 1.066 to 1.634 | +/- 0.284 |
182 career BF
| xwOBA | 0.223 |
| K% | 17.7% |
| BB% | 7.7% |
| Barrel | 5.4% |
658 career BF
| xwOBA | 0.234 |
| K% | 16.4% |
| BB% | 7.9% |
| Barrel | 6.0% |