ATP & WTA Tennis · Kinoshita Group Japan Open
Katerina Siniakova vs Peyton Stearns
· Osaka, Japan
Katerina Siniakova
56 %Polymarket
Peyton Stearns
45 %Polymarket
Markets on this game
Every market linked to this game on Polymarket and Kalshi. A market is linked only when both sides and the date match.
| Market | Venue | Type | Yes |
|---|---|---|---|
| Japan Women's Open: Katerina Siniakova vs Peyton Stearns | Polymarket | Winner | 56 % |
AI match scan
Form, availability, venue and each side's strengths and weaknesses for Katerina Siniakova vs Peyton Stearns — researched with sources, with an estimate next to the market price.
Every scan uses one of your research credits.
How these markets resolve
Match markets settle on the official result. A retirement mid-match or a walkover before it starts is where markets differ — some settle to the player who advances, others fall back to their default rule.
Questions
When and where is Katerina Siniakova vs Peyton Stearns?
The start time above is shown in your time zone; the venue comes from the official schedule as listed by ESPN. Times can still move — the page updates twice an hour.
What do the percentages mean?
They are the live Yes prices of the linked prediction markets: what traders currently pay for each outcome. They are not a forecast of ours — the AI match scan gives its own estimate separately.
What happens to a tennis market if a player retires?
It depends on the market's rules. Some award the match to the player who advances; others settle by a fallback rule if a set was not completed. Read the rules before the match starts.