TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 5, 4:00 AM EST
Polymarket
This market refers to the tennis match between Philip Henning and Stefano Napolitano in the Centurion, originally scheduled for May 29, 2026 at 4:00AM ET. This market will resolve to 'Philip Henning' if Philip Henning advances against Stefano Napolitano. This market will resolve to 'Stefano Napolitano' if Stefano Napolitano advances against Philip Henning. 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds on Polymarket often diverge from traditional sportsbook odds because they reflect decentralized trader sentiment rather than bookmaker risk management. Sportsbooks adjust lines to balance liability and lock in profit margins, while prediction markets aggregate beliefs from many independent participants with real money at stake. For the Henning vs Napolitano fight, Polymarket odds may price fighter performance, recent form, and public perception differently than major sportsbooks. Comparing the two can reveal where consensus differs and highlight potential value. Prediction markets tend to be more responsive to breaking news and social momentum than sportsbooks.
On Polymarket, the Centurion: Philip Henning vs Stefano Napolitano market is priced through an automated market maker that converts trader activity into real-time odds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current implied probability reflects the balance of buy and sell orders; as more traders back one fighter, that outcome's price rises and the opposing outcome falls. Liquidity on Polymarket determines how much trading volume can move the odds. You can enter or exit positions at any time before the market resolves on Jun 5, 2026, with your entry price determined by the current order book depth. The price you see is the marginal cost of the next share transacted.
Several factors could shift odds for the Henning vs Napolitano fight before Jun 5, 2026. Injury announcements or fighter withdrawals would trigger sharp repricing. Recent training footage, sparring results, or public statements from either fighter's camp could sway trader sentiment. Weigh-in outcomes and official medical clearances matter in combat sports. Media coverage, expert commentary, and social media momentum often influence prediction market prices. Changes in fighter ranking or upcoming opponent news might also affect perceived value. As the fight date approaches, any confirmed details about fight conditions, referee assignments, or last-minute rule changes could move the market.