- Porto: Valentina Steiner vs Katie Swan1¢
- Porto: Completed Match: Valentina Steiner vs Katie Swan50¢
- Set 1 Winner: Valentina Steiner vs Katie Swan<1¢
- Set 2 Winner: Valentina Steiner vs Katie Swan50¢
- Valentina Steiner vs. Katie Swan: Total Sets O/U 2.54¢
- Steiner vs. Swan: Set 1 Games O/U 8.5<1¢
- Steiner vs. Swan: Set 1 Games O/U 9.5<1¢
- Steiner vs. Swan: Set 1 Games O/U 10.5<1¢
- Steiner vs. Swan: Set 2 Games O/U 8.550¢
- Steiner vs. Swan: Set 2 Games O/U 9.550¢
- Steiner vs. Swan: Set 2 Games O/U 10.550¢
- Steiner vs. Swan: Match O/U 21.550¢
This market refers to the tennis match between Valentina Steiner and Katie Swan in the Porto, originally scheduled for September 24, 2026 at 6:00AM ET. This market will resolve to 'Valentina Steiner' if Valentina Steiner advances against Katie Swan. This market will resolve to 'Katie Swan' if Katie Swan advances against Valentina Steiner. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 8, 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.