Japan Open Odds & Predictions
Kalshi’s Japan Open prices: the latest results and past champions.
Live market pricesUpdated today at 2:34 PM ET
Where these numbers come from: Kalshi prices: KXATP for the winner and KXATPMATCH for each match, with KXATPSETWINNER, KXATPGTOTAL and KXATPGSPREAD for its props. Tournament details, champions, draws and the order of play: Kalshi’s tennis data feed, which covers the ATP and WTA tours.
TOURNAMENTAs Kalshi’s tennis data feed lists the tournament. The previous champion won the last edition; this edition’s is named once the feed names one.
Japan Open 2027: dates, venue and champions
| ATP | |
|---|---|
| Tournament | Kinoshita Group Japan Open Tennis Championships |
| Tier | ATP 500 |
| Dates | Sep 29–Oct 5, 2027 |
| Status | Upcoming |
| Draw | Previous champion | Champion |
|---|---|---|
| Men’s singles | Carlos Alcaraz | Not played yet |
| Men’s doubles | Austin Krajicek / Nikola Mektic | Not played yet |
RESULTSThe most recently graded matches, as Kalshi’s markets settled them.
Japan Open results
| Match | Winner |
|---|---|
| Alcaraz vs LeheckaATP Tokyo · Final | Carlos Alcaraz |
CHAMPIONSEach past edition Kalshi listed, and the player its winner market settled on.
Japan Open champions
| Year | Draw | Champion |
|---|---|---|
| 2026 | Men’s singles (opens in a new tab) | Carlos Alcaraz |
METHOD
How to read this page
A winner price is a player’s Kalshi price to win the tournament, read as a probability; a qualifier price, to make the Finals field.
Match prices move with every point once play starts, so a price here can be minutes old by the time you read it; each links to its live market.
Tier, venue, dates, prize money (where the feed lists it) and champions are from Kalshi’s tennis data feed. The singles draw and the order of play are shown while the tournament is in play.
FAQ
Questions
Who won the last Japan Open?
Carlos Alcaraz won the 2026 Japan Open, as Kalshi’s winner market settled.
When is the Japan Open 2027?
Sep 29–Oct 5, 2027, as Kalshi’s tennis data feed lists it.
Who is the defending Japan Open champion?
Carlos Alcaraz (men’s singles) won the previous edition, as the data feed lists it.
How do I read Kalshi’s tennis odds?
Each price is what a contract paying $1 if that outcome happens costs right now, so 64¢ reads as a 64% chance. Prices move with every point once a match starts, and every one on this page links to its market.
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