brackt/app/services/simulations/__tests__
Chris Parsons 47b8935be6
Add NCAAM and NCAAW bracket Monte Carlo simulators (#150)
- NCAAM: KenPom AEM logistic formula (1/(1+exp(-diff/7.5))), data through 2025-26 March 15
- NCAAW: Barttorvik Barthag Log5 formula (A*(1-B)/(A*(1-B)+B*(1-A))), same bracket structure
- Both simulators: 50,000-iteration Monte Carlo, First Four simulation, honors completed matches
- Track E8+ placements only: champion, finalist, FF losers (3rd/4th), E8 losers (5th–8th)
- Add bracket configuration validation: null R64 slots must exactly match First Four mapping
- Fix DEFAULT_SCORING_RULES to 100/70/45/45/20/20/20/20 (3rd/4th=45, 5th–8th=20)
- Align scoring constants across simulate route, expected-values display, and server action
- Zero out EVs for non-bracket participants on every simulation run (prevents EV inflation)
- Add EV total invariant warning (expected ~340) on expected-values admin page
- 98 unit tests across NCAAM, NCAAW, and UCL simulators — all passing

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-15 23:31:47 -07:00
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ncaam-simulator.test.ts Add NCAAM and NCAAW bracket Monte Carlo simulators (#150) 2026-03-15 23:31:47 -07:00
ncaaw-simulator.test.ts Add NCAAM and NCAAW bracket Monte Carlo simulators (#150) 2026-03-15 23:31:47 -07:00
ucl-simulator.test.ts feat: add UCL bracket Monte Carlo simulator (#131) 2026-03-10 23:04:51 -07:00