TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 9, 12:57 PM EST
Kalshi
Two professional tennis players compete in a Round of 32 match at the 2026 ATP Stuttgart tournament. The match will be decided by whichever player wins in straight sets or in a tiebreaker set.
Prediction market odds on Kalshi often diverge from traditional sportsbook lines because they reflect real-time trader sentiment rather than fixed bookmaker spreads. Sportsbooks typically offer limited exact-score options and adjust lines to manage liability, while prediction markets allow continuous price discovery across all possible scorelines. Comparing Kalshi probabilities to major sportsbook offerings can reveal which outcomes the crowd of traders favors versus where bookmakers see value. These differences highlight how decentralized markets and traditional oddsmaking produce distinct views on match outcomes.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, the exact match score is priced as a set of binary contracts, each representing a specific final scoreline. Traders buy YES or NO shares at prices between 0 and 100 cents, with the price reflecting the implied probability of that exact outcome. Each contract settles independently based on the final score. Kalshi's order-book model allows continuous trading, so prices adjust dynamically as new information emerges and trader positions shift. The sum of all scoreline probabilities across the market reflects overall confidence in the match outcome.
The market resolves on Jun 8, 2026, shortly after the Diego Dedura-Palomero vs James Duckworth match concludes. Resolution is determined by the final set score recorded by official match records. Only the exact scoreline that matches the final result will resolve to YES; all other scoreline contracts resolve to NO. Traders should monitor official ATP or tournament sources for the confirmed final score to understand which contract will settle.
Several factors can shift odds before the match begins: recent form and head-to-head records, surface conditions, injury announcements, and player ranking changes. During play, the score itself is the primary driver—as one player moves ahead, contracts for scorelines favoring that player gain value while others decline. Momentum shifts, set length, and tiebreak outcomes all influence which exact scores remain plausible. Weather delays or other match disruptions may also trigger repricing as traders reassess probabilities based on changing circumstances.