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: Sep 2, 6:39 PM EST
Polymarket
This market tracks the outcome of over/under 9.5 games in Set 4 of the US Open ATP match between Fabian Marozsan and Michael Zheng, scheduled for August 30, 2026. Currently, the consensus probability of “Marozsan vs. Zheng: Set 4 Games O/U 9.5” is 100.0%. This aggregate reflects predictions from Polymarket and Limitless, and will resolve based on Official Grand Slam match statistics. Keep an eye on the match itself as it progresses, with resolution dependent on official statistics reported after the conclusion of play on September 6, 2026.
This market refers to the tennis match between Fabian Marozsan and Michael Zheng in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Fabian Marozsan' if Fabian Marozsan advances against Michael Zheng. This market will resolve to 'Michael Zheng' if Michael Zheng advances against Fabian Marozsan. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 2026, 11:59 PM ET (14 days after the scheduled start), 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Fabian Marozsan and Michael Zheng in the ATP US Open, originally scheduled for August 30, 2026 at 15:00 UTC. This market will resolve to "YES" if the total number of games completed across all sets equals or exceeds 37. Otherwise, it will resolve to "NO." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
On Polymarket, this market reflects trader sentiment through dynamic pricing, often showing sharper movements than traditional sportsbook lines. Prediction markets can price in nuances like player form and weather impacts faster, while sportsbooks may smooth probabilities for broader appeal. The gap between the two can widen if Polymarket traders have access to sharper analytics or real-time data feeds. However, sportsbooks incorporate risk management and overhead, which can temper their odds. For the Marozsan vs Zheng US Open match market, this means prediction markets may appear more volatile but can also offer earlier signals of shifting expectations.
On Polymarket and Limitless, pricing mechanisms and user bases create natural divergence. Polymarket and Limitless can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. For this market, Polymarket may attract traders focused on tennis analytics, pricing in detailed stats like recent performance and head-to-head history. Meanwhile, Limitless could have a broader user base less tuned to tennis specifics, leading to more generalized bets. Liquidity differences also play a role — deeper pools on one platform can stabilize prices, while thinner markets elsewhere may see wider swings. These factors combined mean the two platforms can temporarily favor different outcomes.
Key updates like player injuries, weather delays, or sudden form shifts could dramatically move this market. As the tournament progresses, each round result — especially any upsets involving Marozsan or Zheng — will reshape expectations. Media interviews revealing strategy changes or fitness concerns can also shift trader sentiment. Even minor events, such as a coach change or a high-profile betting surge on one platform, may create momentum that ripples across Polymarket and Limitless, making real-time monitoring essential for anyone tracking the Marozsan vs Zheng US Open match market.