Arccos isn't a guessing game. It's a data engine that learns your tendencies, surfaces what's actually costing you strokes, and tells you the smartest play on every tee — backed by 1.5B real shots and 4.2T data points.
Used by major champions like Matt Fitzpatrick and trusted by the PGA Tour as their Official Game Tracker, Arccos Caddie's AI strategy was developed with European Ryder Cup Vice Captain Edoardo Molinari. Members report an average 5.71 stroke improvement in their first year — and improve their approach play by 14.9%.
The 45-day window is intentional: it covers a full cycle of weekend rounds so your data is real, not anecdotal. By the time the trial ends, your Strokes Gained dashboard will tell you exactly which clubs are working and which holes deserve practice attention.