Anderson, Drew
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 | 4.07 |
| ERA current pace | 3.44 |
| ERA rolling p50 | 3.81 |
| Observed weight | 42% |
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 | 40.2% | 252 | 103 | qualified |
| CH | 31.7% | 199 | 104 | limited sample |
| CB | 21.4% | 134 | 101 | limited sample |
| SL | 6.7% | 42 | 110 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | -1.92 |
| K% Δ | +0.076 |
| Sample | 40.0 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 32.3 | -- | -- |
| Batters Faced | 141 | -- | -- |
| K% | 20.6% | 6.1% to 22.8% | +/- 8.4% |
| BB% | 9.2% | 1.3% to 9.3% | +/- 4.0% |
| Whiff% | 19.9% | 5.3% to 26.8% | +/- 10.7% |
| HR/9 | 1.20 | 0.00 to 1.59 | +/- 0.80 |
| xwOBA Against | 0.284 | 0.001 to 0.312 | +/- 0.155 |
| Barrel% Allowed | 7.8% | 0.1% to 9.4% | +/- 4.6% |
| ERA | 5.36 | 0.09 to 6.05 | +/- 2.98 |
| FIP | 3.76 | 0.17 to 5.79 | +/- 2.81 |
| WHIP | 1.408 | 0.308 to 1.640 | +/- 0.666 |
105 career BF
| xwOBA | 0.004 |
| K% | 7.9% |
| BB% | 3.2% |
| Barrel | 0.1% |
124 career BF
| xwOBA | 0.004 |
| K% | 8.5% |
| BB% | 2.5% |
| Barrel | 0.1% |