TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 14, 9:00 PM EST
Polymarket
This market refers to the tennis match between Naoki Nakagawa and Sanhui Shin in the ITF Men Tokyo, originally scheduled for July 7, 2026 at 9:00PM ET. This market will resolve to 'Naoki Nakagawa' if Naoki Nakagawa advances against Sanhui Shin. This market will resolve to 'Sanhui Shin' if Sanhui Shin advances against Naoki Nakagawa. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Naoki Nakagawa and Sanhui Shin in the ITF Men Tokyo, originally scheduled for July 7, 2026 at 9:00PM ET. This market will resolve to 'Naoki Nakagawa' if Naoki Nakagawa advances against Sanhui Shin. This market will resolve to 'Sanhui Shin' if Sanhui Shin advances against Naoki Nakagawa. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and operate under different constraints. Sportsbooks set odds to balance their book and manage risk, incorporating their own margins. Prediction markets, by contrast, aggregate the beliefs of many independent traders with real financial stakes, often producing prices that reflect broader information and fewer intermediary markups. This market's odds may move faster or differently than traditional sportsbooks in response to breaking news or shifts in trader conviction, making side-by-side comparison useful for identifying where consensus is strongest.
On Polymarket, traders set the price of this market by buying and selling outcome shares in an automated market maker (AMM) system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price you see reflects the current ratio of shares held in the liquidity pool; as more traders back one outcome, the cost of those shares rises and others fall. This continuous repricing mechanism ensures the market stays responsive to new information and trader sentiment. Liquidity depth and trading volume influence how quickly prices move, so markets with deeper pools typically show more stable pricing.
This market resolves around Jul 15, 2026, once the match concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result—whether Nakagawa or Shin prevails in the ITF Tokyo event. Resolution typically follows shortly after the match ends, pending final confirmation from tournament organizers or recognized sports data providers. Traders holding shares in the winning outcome receive their payout once the market settles.
Several factors could shift trader positioning before the match concludes. Player injury reports or withdrawal announcements would trigger sharp repricing, as would unexpected changes to court conditions or match scheduling. Recent performance data, head-to-head records, and betting activity at major sportsbooks often influence prediction market prices as traders incorporate fresh information. News coverage of either player's form, fitness, or mental state can also sway sentiment. Once play begins, live match developments—momentum swings, set outcomes, and momentum shifts—typically drive the most dramatic price movements as traders update their expectations in real time.