Carlos Alcaraz back to ATP No. 1 in 2026?
Market Rules
If Carlos Alcaraz holds the World No. 1 position in the official PIF ATP Rankings (singles) at any point between this market's open and 23:59 UTC on 31 December 2026, this market will resolve to "Yes".
The primary resolution source is the official weekly PIF ATP Rankings as published by the ATP Tour on its official website (atptour.com). Resolution is based on the official published ranking; a position shown only in the ATP Live Rankings does not count until it is reflected in an official weekly ranking release.
This is a first-truth market: the first official weekly ranking within the market period showing Alcaraz at No. 1 resolves it to "Yes", regardless of subsequent rankings. If the ATP does not publish a ranking that would otherwise be expected (for example, due to a tour suspension), the most recent official ranking release governs. In the spirit of the market, only the official ATP singles ranking determines the outcome; exhibition results, other ranking systems, and unofficial projections do not.