No previous meetings between these players on record.
Price History
How the market priced this match, up to settlement.
Total Volume
$218.4K
7D
Katerina Siniakova0%Madison Keys100%
source: Polymarket
Match Date
When the match was played and when the market settled.
AugustTUE 18
Match played
AugustTUE 18
Market settled
Match Recap
How the match ended and how the market closed.
Cincinnati Open: Katerina Siniakova vs Madison Keys winner?AUG 18, 2026
Madison Keys beat Katerina Siniakova 6-1 6-3 at Cincinnati Open. Before the match the market priced Madison Keys at 74% – the market had it right. $218.4K was traded across 15 markets on this match before it settled. This page is an archive: the market is closed and the prices shown are closing prices.
100%
closing
All Markets on This Match
Set winners, totals and props on the same event, ranked by traded volume, most active first.
Market
Leading outcome
Siniakova vs. Keys: Match O/U 21.5
Under 100%
Set Handicap: Keys (-1.5) vs Siniakova (+1.5)
Keys 100%
Set 1 Winner: Siniakova vs Keys
Keys 100%
Cincinnati Open: Completed Match: Katerina Siniakova vs Madison Keys
Yes 100%
Katerina Siniakova vs. Madison Keys: Total Sets O/U 2.5
