Castaño, Blas
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 | 4.61 |
| ERA current pace | 3.00 |
| ERA rolling p50 | 4.34 |
| Observed weight | 17% |
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 |
|---|---|---|---|---|
| SI | 41.1% | 58 | 98 | limited sample |
| SL | 24.8% | 35 | 101 | limited sample |
| FC | 16.3% | 23 | 98 | limited sample |
| CH | 11.3% | 16 | 102 | limited sample |
| FB | 6.4% | 9 | 84 | 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 | 29.6 | -- | -- |
| Batters Faced | 135 | -- | -- |
| K% | 20.6% | 0.1% to 22.5% | +/- 11.2% |
| BB% | 8.9% | 1.3% to 13.2% | +/- 5.9% |
| Whiff% | 22.6% | 0.4% to 24.7% | +/- 12.2% |
| HR/9 | 1.66 | 0.00 to 1.90 | +/- 0.95 |
| xwOBA Against | 0.365 | 0.112 to 0.483 | +/- 0.186 |
| Barrel% Allowed | 7.7% | 3.2% to 11.6% | +/- 4.2% |
| ERA | 4.72 | 0.91 to 6.93 | +/- 3.01 |
| FIP | 4.25 | 1.88 to 6.12 | +/- 2.12 |
| WHIP | 1.409 | 0.502 to 1.759 | +/- 0.628 |
17 career BF
| xwOBA | 0.129 |
| K% | 1.9% |
| BB% | 3.2% |
| Barrel | 6.2% |
2 career BF
| xwOBA | 0.120 |
| K% | 2.1% |
| BB% | 2.4% |
| Barrel | 5.4% |