Learn

Tennis
By Claire Williamson
Anna Bondar vs Elena-Gabriela Ruse prediction
Anna Bondar and Elena-Gabriela Ruse meet in the Korea Open quarterfinals on Saturday, September 26. Both escaped difficult matches to get here, but Ruse has spent less time on court and leads their recorded head-to-head. The OG.com match-winner market also favors the Romanian before their first meeting since 2023.

Tennis
By Claire Williamson
Katie Volynets vs Kimberly Birrell prediction
Katie Volynets faces No. 2 seed Kimberly Birrell in the Korea Open quarterfinals on Saturday, September 26. Their four previous meetings are split evenly, while Volynets arrives after two emphatic straight-set wins.

Tennis
By Claire Williamson
Lanlana Tararudee vs Maya Joint prediction
Lanlana Tararudee and Maya Joint meet in the Korea Open quarterfinals on Saturday, September 26. The OG.com prediction market narrowly favors Tararudee, but Joint's record in Seoul and a closely fought previous meeting give this matchup more than one plausible path.

Tennis
By Chris Old
Who will win the US Open women's singles? Prediction and odds
Aryna Sabalenka is favorite to win a third consecutive US Open title, but Coco Gauff and Iga Swiatek arrive in form and the 2026 women's majors have been anything but predictable.

Tennis
By Chris Old
Who will win the US Open men's singles? Prediction and odds
Alexander Zverev leads the prediction markets to win the 2026 US Open men's singles title, but Ben Shelton has blown the draw open by eliminating defending champion Carlos Alcaraz in a five-set quarterfinal epic.

Tennis
By Chris Old
Who will win the US Open men's singles? Prediction and odds
Carlos Alcaraz leads the prediction markets to win the 2026 US Open men's singles title, despite returning from a four-month wrist injury in a tournament reshaped by Jannik Sinner's withdrawal.