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Prediction market on polymarket. This market will resolve to "Sofia Costoulas" if Sofia Costoulas wins 5.5 or more total games than Sofya Lansere in the upcoming tennis match, scheduled for September 30, 2026 at 10:00PM ET. Otherwise, this market will resolve to "Sofya Lansere". Games won will be counted across all sets played in the match. A set decided by a tiebreak will count as one game for the winner of that tiebreak, and a match tiebreak played in place of a final set will also count as one game for its winner. If the match is canceled (not played at all), or is delayed beyond 14 days from the scheduled date without completion at 11:59 PM ET, this market will resolve 50-50. If the match begins but is not completed due to retirement, default, or disqualification, this market will resolve 50-50, unless the outcome of this market has already been unconditionally determined by the completed portion of play under the match format published by the tournament organizer for that round. For example, if the match ends at a point where Sofia Costoulas could no longer have finished 5.5 or more games ahead even by winning every remaining game, this market will resolve to "Sofya Lansere". If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Resolves: 10/8/2026.