- Set 2 Winner: Osaka vs Rybakina46¢
- Osaka vs. Rybakina: Set 1 Games O/U 8.582¢
- US Open WTA: Naomi Osaka vs Elena Rybakina44¢
- US Open WTA: Completed Match: Naomi Osaka vs Elena Rybakina50¢
- Set 1 Winner: Osaka vs Rybakina46¢
- Naomi Osaka vs. Elena Rybakina: Total Sets O/U 2.544¢
- Osaka vs. Rybakina: Set 2 Games O/U 9.550¢
- Osaka vs. Rybakina: Set 1 Games O/U 9.555¢
- Osaka vs. Rybakina: Set 1 Games O/U 10.531¢
- Osaka vs. Rybakina: Set 2 Games O/U 8.550¢
- Osaka vs. Rybakina: Match O/U 21.558¢
- Osaka vs. Rybakina: Match O/U 23.547¢
This market refers to the tennis match between Naomi Osaka and Elena Rybakina in the US Open WTA, originally scheduled for September 7, 2026 at 11:00AM ET. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Elena Rybakina. This market will resolve to 'Elena Rybakina' if Elena Rybakina advances against Naomi Osaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 21, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. 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.
Elena Rybakina enters this US Open fourth-round matchup as the clear favorite, holding the world No. 2 ranking, the 2026 Australian Open title, and a 1-0 head-to-head edge after defeating Naomi Osaka in three tight sets on hard courts in the Toronto quarterfinals just weeks earlier. Rybakina has powered through her first three New York matches without dropping a set, though an Achilles issue that forced her retirement in Cincinnati remains a day-to-day concern. Osaka, ranked No. 13 and a two-time US Open champion, brings strong recent hard-court form, having reached the Toronto quarterfinals and Washington semifinals while advancing to the quarterfinals or better at the prior three majors this season. Both players rely on big serves and aggressive baseline play on the hard courts, where Osaka’s experience at Flushing Meadows and freedom as the underdog could create opportunities if Rybakina’s movement is limited.