brackt/drizzle/0059_mysterious_jack_murdock.sql
Chris Parsons d7ba20d9ea
Add tennis Grand Slam simulator with surface Elo ratings, fixes #116 (#216)
Implements a Monte Carlo simulator for men's/women's tennis seasons scored
on the qualifying_points pattern. Simulates all 4 Grand Slam majors
(Australian Open, French Open, Wimbledon, US Open) using surface-specific
Elo ratings and ATP/WTA world rankings for seeding.

New table: participant_surface_elos — one row per (participant, season)
storing worldRanking, eloHard, eloClay, eloGrass.

Key design decisions:
- Seeding uses ATP/WTA world ranking (not Elo), matching real draw procedure
- Top 32 seeded with standard slot placement (1→0, 2→64, 3-4→quarters, etc.)
- QP per round with tie-splitting pre-applied: W=20, F=14, SF=9, QF=4, R16=1.5
- Completed majors read actual qualifyingPointsAwarded from eventResults
- 10,000 Monte Carlo simulations; column sums naturally 1.0 (no normalization)

Admin UI at /admin/sports-seasons/:id/surface-elo:
- 5-column grid (Player | Rank | Hard | Clay | Grass)
- Bulk import: "Name, ranking, hardElo, clayElo, grassElo" one per line
- Fuzzy name matching (bigram Dice coefficient) with "Did you mean?" suggestions
- Inline participant creation for unmatched names via useFetcher
- Saves Elos and auto-runs simulation on submit

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-23 23:59:35 -07:00

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No EOL
1.2 KiB
SQL

ALTER TYPE "public"."simulator_type" ADD VALUE 'tennis_qualifying_points';--> statement-breakpoint
CREATE TABLE IF NOT EXISTS "participant_surface_elos" (
"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
"participant_id" uuid NOT NULL,
"sports_season_id" uuid NOT NULL,
"elo_hard" integer,
"elo_clay" integer,
"elo_grass" integer,
"updated_at" timestamp DEFAULT now() NOT NULL
);
--> statement-breakpoint
DO $$ BEGIN
ALTER TABLE "participant_surface_elos" ADD CONSTRAINT "participant_surface_elos_participant_id_participants_id_fk" FOREIGN KEY ("participant_id") REFERENCES "public"."participants"("id") ON DELETE cascade ON UPDATE no action;
EXCEPTION
WHEN duplicate_object THEN null;
END $$;
--> statement-breakpoint
DO $$ BEGIN
ALTER TABLE "participant_surface_elos" ADD CONSTRAINT "participant_surface_elos_sports_season_id_sports_seasons_id_fk" FOREIGN KEY ("sports_season_id") REFERENCES "public"."sports_seasons"("id") ON DELETE cascade ON UPDATE no action;
EXCEPTION
WHEN duplicate_object THEN null;
END $$;
--> statement-breakpoint
CREATE UNIQUE INDEX IF NOT EXISTS "participant_surface_elos_unique" ON "participant_surface_elos" USING btree ("participant_id","sports_season_id");