148 rounds · May 2024 — Mar 2026 · Statistical models + data quality fixes
Scoring trends, SG breakdown, monthly charts, club performance, putting/short game by distance, weather scatter, and course comparisons. 7 interactive Chart.js charts.
16 non-obvious findings: GPS measurement errors, Simpson's Paradox in your improvement trend, the blow-up hole model, corrected practice priorities, and what the standard dashboard hides.
Clean rounds dataset with 30+ computed fields: rolling averages, penalties, GIR%, blowup strokes, weather, data quality flags. Powers the Google Sheet via Apps Script.
/api/rounds.json as the data source in Apps Script. CORS enabled.