Alvarez, Andrew
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 | 4.58 |
| ERA current pace | 2.84 |
| ERA rolling p50 | 4.21 |
| Observed weight | 21% |
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 | 33.7% | 62 | 104 | limited sample |
| SL | 29.3% | 54 | 101 | limited sample |
| FB | 23.4% | 43 | 97 | limited sample |
| SI | 12.5% | 23 | 97 | limited sample |
| CH | 1.1% | 2 | 99 | 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 | 63.6 | -- | -- |
| Batters Faced | 267 | -- | -- |
| K% | 20.8% | 14.2% to 26.2% | +/- 6.0% |
| BB% | 9.2% | 6.0% to 11.9% | +/- 3.0% |
| Whiff% | 20.9% | 14.1% to 25.9% | +/- 5.9% |
| HR/9 | 1.35 | 0.14 to 1.89 | +/- 0.88 |
| xwOBA Against | 0.353 | 0.230 to 0.359 | +/- 0.065 |
| Barrel% Allowed | 8.1% | 1.9% to 9.0% | +/- 3.5% |
| ERA | 4.51 | 1.80 to 5.43 | +/- 1.81 |
| FIP | 4.30 | 3.00 to 5.71 | +/- 1.36 |
| WHIP | 1.396 | 0.917 to 1.732 | +/- 0.407 |
15 career BF
| xwOBA | 0.191 |
| K% | 16.6% |
| BB% | 6.5% |
| Barrel | 2.3% |
83 career BF
| xwOBA | 0.205 |
| K% | 14.9% |
| BB% | 7.6% |
| Barrel | 2.6% |