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: Jun 20, 2:00 PM EST
Polymarket
This market refers to the tennis match between Andrew Johnson and Spencer Johnson in the ITF Men Los Angeles, originally scheduled for June 13, 2026 at 2:00PM ET. This market will resolve to 'Andrew Johnson' if Andrew Johnson advances against Spencer Johnson. This market will resolve to 'Spencer Johnson' if Spencer Johnson advances against Andrew Johnson. 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 Andrew Johnson and Spencer Johnson in the ITF Men Los Angeles, originally scheduled for June 13, 2026 at 2:00PM ET. This market will resolve to 'Andrew Johnson' if Andrew Johnson advances against Spencer Johnson. This market will resolve to 'Spencer Johnson' if Spencer Johnson advances against Andrew Johnson. 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 reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by traders seeking to profit from accurate forecasts. Prediction markets can sometimes offer sharper, more efficient pricing because participants have real money at stake and face direct consequences for mispricing. Comparing this market's odds to major sportsbooks can reveal valuable discrepancies and help you identify where the crowd's true conviction lies.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative bets placed on it; as more capital flows toward one result, its odds shift upward, while the alternative declines. This continuous repricing mechanism ensures the market remains responsive to new information and trader conviction, allowing you to enter or exit positions at transparent, real-time rates throughout the trading window.
This market resolves around Jun 20, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome will reflect which player wins the ITF Los Angeles event. Until that point, you can trade your position freely, allowing you to lock in gains, cut losses, or adjust your exposure as new information emerges. Resolution typically occurs within hours of the final point.
Several factors can shift odds before resolution. Injury reports or player withdrawals would trigger sharp repricing. Recent form, head-to-head records, and court conditions at the venue may influence trader positioning as the match date approaches. News about either player's fitness, mental state, or recent tournament results can sway sentiment. Betting syndicate activity and large trades can also move the market quickly. Close to match time, weather updates and official lineup confirmations often drive final adjustments as traders refine their edge.