Vesia, Alex
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 | 3.23 |
| ERA current pace | 2.41 |
| ERA rolling p50 | 3.01 |
| Observed weight | 27% |
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 |
|---|---|---|---|---|
| FB | 56.8% | 187 | 102 | limited sample |
| SL | 32.5% | 107 | 104 | limited sample |
| CH | 10.6% | 35 | 101 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | -0.96 |
| K% Δ | +0.046 |
| Sample | 22.0 IP |
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 40.5 | -- | -- |
| Batters Faced | 168 | -- | -- |
| K% | 28.0% | 23.0% to 38.9% | +/- 8.0% |
| BB% | 10.4% | 6.4% to 15.0% | +/- 4.3% |
| Whiff% | 26.6% | 21.7% to 32.5% | +/- 5.4% |
| HR/9 | 1.33 | 0.60 to 2.23 | +/- 0.82 |
| xwOBA Against | 0.293 | 0.237 to 0.351 | +/- 0.057 |
| Barrel% Allowed | 9.5% | 5.0% to 15.7% | +/- 5.3% |
| ERA | 3.37 | 1.39 to 5.54 | +/- 2.07 |
| FIP | 4.09 | 2.19 to 7.21 | +/- 2.51 |
| WHIP | 1.178 | 0.918 to 1.547 | +/- 0.315 |
505 career BF
| xwOBA | 0.249 |
| K% | 31.1% |
| BB% | 9.0% |
| Barrel | 10.5% |
767 career BF
| xwOBA | 0.284 |
| K% | 28.1% |
| BB% | 11.2% |
| Barrel | 11.9% |