- Costoulas vs. Inoue: Set 1 Games O/U 10.50¢
- W50 Guiyang: Sofia Costoulas vs Hina Inoue0¢
- Costoulas vs. Inoue: Match O/U 23.5100¢
- Sofia Costoulas vs. Hina Inoue: Total Sets O/U 2.5100¢
- Costoulas vs. Inoue: Set 1 Games O/U 9.50¢
- Costoulas vs. Inoue: Match O/U 22.5100¢
- Set Handicap: Costoulas (-1.5) vs Inoue (+1.5)0¢
- W50 Guiyang, Main Draw: Completed Match: Sofia Costoulas vs Hina Inoue100¢
- Set 1 Winner: Costoulas vs Inoue0¢
- Costoulas vs. Inoue: Set 2 Games O/U 8.5100¢
- Set Handicap: Inoue (-1.5) vs Costoulas (+1.5)0¢
- Set 2 Winner: Costoulas vs Inoue100¢
This market refers to the tennis match between Sofia Costoulas and Hina Inoue in the W50 Guiyang, Main Draw, originally scheduled for September 7, 2026 at 10:00PM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Hina Inoue. This market will resolve to 'Hina Inoue' if Hina Inoue advances against Sofia Costoulas. 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Sofia Costoulas (WTA 155) enters the W50 Guiyang first-round match on outdoor hard courts as the clear favorite over Hina Inoue (WTA 284), reflecting traders' consensus on her superior ranking and consistent hard-court results (21-11 in 2026). Costoulas has competed in higher-level events including US Open qualifying, while Inoue's recent ITF schedule shows mixed outcomes with several early exits in W75 events. Inoue leads their head-to-head 1-0 after a 2025 Wimbledon qualifying win on grass, and she claimed the 2024 Guiyang title, but the ranking gap and Costoulas' hard-court edge dominate current implied probabilities in this best-of-three encounter.