Lorenzen, Michael
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 | 4.41 |
| ERA current pace | 7.21 |
| ERA rolling p50 | 5.97 |
| Observed weight | 56% |
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
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 |
|---|---|---|---|---|
| CH | 20.9% | 205 | 96 | qualified |
| FB | 20.5% | 201 | 100 | qualified |
| SL | 16.5% | 162 | 105 | limited sample |
| SI | 15.7% | 154 | 104 | limited sample |
| CB | 14.0% | 137 | 102 | limited sample |
| FC | 12.5% | 123 | 108 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +2.32 |
| K% Δ | -0.025 |
| Sample | 62.0 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 74.5 | -- | -- |
| Batters Faced | 316 | -- | -- |
| K% | 17.8% | 15.5% to 24.2% | +/- 4.4% |
| BB% | 7.8% | 5.7% to 10.3% | +/- 2.3% |
| Whiff% | 20.0% | 17.9% to 24.5% | +/- 3.3% |
| HR/9 | 1.62 | 1.03 to 2.23 | +/- 0.60 |
| xwOBA Against | 0.360 | 0.308 to 0.385 | +/- 0.038 |
| Barrel% Allowed | 8.7% | 6.7% to 11.7% | +/- 2.5% |
| ERA | 4.89 | 3.40 to 6.39 | +/- 1.50 |
| FIP | 4.61 | 3.60 to 4.97 | +/- 0.68 |
| WHIP | 1.398 | 1.175 to 1.638 | +/- 0.231 |
2106 career BF
| xwOBA | 0.311 |
| K% | 17.4% |
| BB% | 8.3% |
| Barrel | 8.1% |
2262 career BF
| xwOBA | 0.312 |
| K% | 17.7% |
| BB% | 6.6% |
| Barrel | 8.9% |