Win rate = wins ÷ (wins + losses).
Pushes and voids are not counted.
Pending, disputed and under-review picks are not counted.
A parlay counts as one wager.
Hedges are reported separately and are not in the headline win rate.
Example (fictional)
10 wins, 8 losses and 1 push gives a win rate of 10 ÷ 18 = 55.6%. The push is ignored.
Keep in mind
Win rate alone doesn't show profit, because odds differ from bet to bet. A lower win rate on underdogs can still be profitable, and a high win rate on heavy favorites can still lose money. Past results do not guarantee future results. See Why no pick, and no past record, guarantees a win.