brackt/app
Chris Parsons 2b48ef285d
Rework MLB simulator: RDif-based matchup probs, 2026 data, fixes #227 (#228)
Fixes #227

- Replace hardcoded Elo ratings with 2026 FanGraphs Depth Charts projected
  run differential (RDif) for all 30 teams
- Replace Elo formula with Bill James log5 using RDif → win rate conversion
- Restore p_div/p_wc from FanGraphs playoff odds (divTitle/wcTitle) for
  seeding draws — previously these were incorrectly derived from raw win
  rates, which gave the Dodgers only ~24% division win probability instead
  of the correct ~90%
- Add RDIF_DIVISOR constant to compress team strengths toward .500 for
  playoff parity; set to 8000 (Dodgers +137 → ~51.7% per-game win rate)
- Fix minimum team check: < 5 → < 6 (need 3 div winners + 3 wild cards)
- Fix Colorado Rockies p_div 0.000 → 0.001 for consistency
- Fix stale comments throughout; update tests

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-25 19:05:12 -07:00
..
components Add MLB playoff simulator with AL/NL division standings, fixes #121 (#225) 2026-03-25 08:47:02 -07:00
contexts feat: implement middleware and context provider for Express integration 2025-10-11 20:56:00 -07:00
hooks Fix oxlint errors. 2026-03-22 20:41:44 -07:00
lib Add golf qualifying points simulator (Plackett-Luce Monte Carlo) (#223) 2026-03-24 21:46:02 -07:00
models Add golf qualifying points simulator (Plackett-Luce Monte Carlo) (#223) 2026-03-24 21:46:02 -07:00
routes Add MLB playoff simulator with AL/NL division standings, fixes #121 (#225) 2026-03-25 08:47:02 -07:00
services Rework MLB simulator: RDif-based matchup probs, 2026 data, fixes #227 (#228) 2026-03-25 19:05:12 -07:00
test Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
types Redesign standings page with sortable table, 7-day change, and chart repositioned (#205) 2026-03-22 11:05:13 -07:00
utils Add oxlint linting setup with zero errors (#194) 2026-03-21 09:44:05 -07:00
welcome Redesign to dark-mode-only with navy palette and accent colors (#13) 2026-02-20 19:26:11 -08:00
app.css Add NProgress navigation progress bar (#139) 2026-03-11 22:02:48 -07:00
entry.client.tsx Filter unnecessary sentry css and js errors. 2026-03-15 10:24:57 -07:00
entry.server.tsx Replace console.* with structured logger, fix no-inferrable-types (closes #98) (#199) 2026-03-21 13:41:39 -07:00
root.tsx Add NProgress navigation progress bar (#139) 2026-03-11 22:02:48 -07:00
routes.ts Add golf qualifying points simulator (Plackett-Luce Monte Carlo) (#223) 2026-03-24 21:46:02 -07:00