This is a polymarket on the tennis match between Dayana Yastremska and Elena Rybakina in the Ningbo Open, scheduled for October 15 at 10:00PM ET. This market will resolve to 'Yastremska' if Dayana Yastremska advances against Elena Rybakina. This market will resolve to 'Rybakina' if Elena Rybakina advances against Dayana Yastremska. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve in favor of the player(s) who officially advances to the next round. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.