NEWPolymarket Perps are live — trade indices, crypto and equities with leverage
Perpetual futures, hourly funding, up to per-market max leverage. How Perps work

Japan Women's Open: Katie Boulter vs Himeno Sakatsume
This market refers to the tennis match between Katie Boulter and Himeno Sakatsume in the Japan Women's Open, originally scheduled for October 18, 2026 at 9:00PM ET. This market will resolve to 'Katie Boulter' if Katie Boulter advances against Himeno Sakatsume. This market will resolve to 'Himeno Sakatsume' if Himeno Sakatsume advances against Katie Boulter. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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.
Price History
Outcomes (16 markets)
Japan Women's Open: Katie Boulter vs Himeno Sakatsume
Japan Women's Open: Completed Match: Katie Boulter vs Himeno Sakatsume
Set 2 Winner: Katie Boulter vs Himeno Sakatsume
Set 1 Winner: Katie Boulter vs Himeno Sakatsume
Set Handicap: Katie Boulter (-1.5) vs Himeno Sakatsume (+1.5)
Game Spread: Katie Boulter (-3.5) vs Himeno Sakatsume (+3.5)
Katie Boulter vs. Himeno Sakatsume: Total Sets O/U 2.5
Boulter vs. Sakatsume: Match O/U 22.5
Boulter vs. Sakatsume: Set 2 Games O/U 8.5
Boulter vs. Sakatsume: Set 1 Games O/U 8.5
Boulter vs. Sakatsume: Set 1 Games O/U 9.5
Boulter vs. Sakatsume: Set 1 Games O/U 10.5
Boulter vs. Sakatsume: Set 2 Games O/U 9.5
Boulter vs. Sakatsume: Set 2 Games O/U 10.5
Boulter vs. Sakatsume: Match O/U 21.5
Boulter vs. Sakatsume: Match O/U 23.5
Market Stats
Top Holders
PRONo holder data yet