ATP and WTA match winners as fair probabilities, no draw leg.
Two outcomes per market, no draw leg — the pair normalises to 1.0000. The Index never names a bookmaker — only how many distinct brands were surveyed. Live: SmashLob.
With exactly two outcomes the whole overround sits across two prices: invert both averaged prices, and the surplus above 1 is precisely the margin. SkipOdds removes it and reports what it removed in margin_removed, so a tightly-priced final and a loosely-priced qualifier are distinguishable at a glance rather than looking identically clean.
63 bookmakers surveyed · de-vigged and refreshed continuously · live from /v1/tennis/fixtures
| Match | Player 1 | Player 2 |
|---|---|---|
| Denis Shapovalov v Alejandro Tabilo 2026-10-03 02:00 UTC · TENNIS · ATP Japan Open | · | Upset Watch |
| Alex de Minaur v Quentin Halys 2026-10-03 03:00 UTC · TENNIS · ATP China Open | Clear Favorite | · |
| Ashlyn Krueger v Ann Li 2026-10-03 03:00 UTC · TENNIS · WTA China Open | Upset Watch | · |
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