Morejon, Adrian
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 | 3.40 |
| ERA current pace | 4.18 |
| ERA rolling p50 | 3.68 |
| Observed weight | 36% |
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 |
|---|---|---|---|---|
| SI | 46.9% | 216 | 111 | qualified |
| SL | 21.5% | 99 | 113 | limited sample |
| CH | 18.0% | 83 | 106 | limited sample |
| FB | 13.7% | 63 | 108 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +0.79 |
| K% Δ | +0.023 |
| Sample | 32.7 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 40.8 | -- | -- |
| Batters Faced | 167 | -- | -- |
| K% | 25.1% | 19.5% to 34.2% | +/- 7.3% |
| BB% | 7.0% | 3.7% to 10.9% | +/- 3.6% |
| Whiff% | 23.9% | 18.9% to 29.3% | +/- 5.2% |
| HR/9 | 0.76 | 0.06 to 1.52 | +/- 0.73 |
| xwOBA Against | 0.298 | 0.243 to 0.337 | +/- 0.047 |
| Barrel% Allowed | 7.2% | 3.2% to 11.3% | +/- 4.0% |
| ERA | 3.39 | 0.69 to 5.17 | +/- 2.24 |
| FIP | 3.12 | 1.85 to 5.31 | +/- 1.73 |
| WHIP | 1.156 | 0.889 to 1.522 | +/- 0.317 |
395 career BF
| xwOBA | 0.242 |
| K% | 24.6% |
| BB% | 5.4% |
| Barrel | 4.9% |
594 career BF
| xwOBA | 0.278 |
| K% | 22.3% |
| BB% | 6.6% |
| Barrel | 7.1% |