Every methodology change, every model retrain, every product release. If a number on the site changes, the change shows up here first.

2026-05-18

v1.0

Launch

Methodology

Model trained on 2023-2025 Statcast pitch-level data, 770k batter-vs-pitcher PAs.
Comp Lab: 38-feature player vectors, weighted Euclidean similarity, top-20 nearest neighbors precomputed for every active hitter.
Park factors: 3-year (2022-24) HR + runs baselines per stadium, applied as multipliers inside the simulator.

Product

Calibration

Empty by design — no fabricated history. Calibration fills in as the first week of plays settle.

2026-05-10

v0.9

Beta

Methodology

Comp Lab gate run: Method B RMSE -10.6% vs league baseline (target was -10%). Shipped with weight tuning queued for week 2 post-launch.
Backtest: 38-feature vector outperformed handedness-only baseline at p<0.01 across HR / K / hits / TB.

Product

Auth-aware nav (server component) reads Supabase session.
Brand primitives shipped: `<Num>` requires sample size, edge-green reserved for EV signal.
14 placeholder routes wired into the site map ahead of v1.0.

2026-05-04

v0.8

Methodology

Infrastructure