McLean, Nolan
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 | 3.48 |
| ERA current pace | 4.40 |
| ERA rolling p50 | 3.97 |
| Observed weight | 53% |
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 | 35.0% | 387 | 106 | qualified |
| FB | 17.1% | 189 | 105 | limited sample |
| SL | 17.0% | 188 | 103 | limited sample |
| CB | 12.0% | 133 | 103 | limited sample |
| FC | 10.5% | 116 | 106 | limited sample |
| CH | 8.3% | 92 | 104 | limited sample |
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Current-season signal
| ERA Δ | +1.11 |
| K% Δ | +0.027 |
| Sample | 65.0 IP |
positive regression
Point projection and range
| Metric | Point | Range | Half-width |
|---|---|---|---|
| Innings | 66.1 | -- | -- |
| Batters Faced | 270 | -- | -- |
| K% | 25.2% | 24.4% to 35.8% | +/- 5.7% |
| BB% | 8.8% | 5.7% to 11.5% | +/- 2.9% |
| Whiff% | 24.4% | 21.5% to 30.2% | +/- 4.4% |
| HR/9 | 1.30 | 0.73 to 1.85 | +/- 0.56 |
| xwOBA Against | 0.313 | 0.277 to 0.349 | +/- 0.036 |
| Barrel% Allowed | 8.8% | 6.3% to 13.2% | +/- 3.4% |
| ERA | 3.29 | 1.73 to 5.02 | +/- 1.65 |
| FIP | 3.63 | 2.41 to 5.24 | +/- 1.41 |
| WHIP | 1.214 | 0.915 to 1.530 | +/- 0.308 |
104 career BF
| xwOBA | 0.261 |
| K% | 26.7% |
| BB% | 8.6% |
| Barrel | 8.3% |
84 career BF
| xwOBA | 0.257 |
| K% | 26.3% |
| BB% | 5.9% |
| Barrel | 9.9% |