TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 25, 1:57 PM EST
Kalshi
The 2026 DS Automobiles 83° Open d'Italia is a professional golf tournament held in Italy. These markets track who will hold the lead after the first round of competition is completed.
Each market resolves to Yes if the specified participant is the sole leader or tied for the lead at the end of Round 1. When multiple participants tie for the lead, Yes positions receive a proportional payout of $1/N (rounded down to the nearest cent), where N equals the number of tied participants. No positions receive 1 minus the Yes payout amount. This structure ensures that the combined payout of Yes and No positions always equals $1, regardless of whether a single participant or multiple participants share the lead.
Prediction market odds and traditional sportsbook odds often diverge because they operate under different constraints and incentive structures. Sportsbooks set odds to balance their liability and profit margin, while prediction markets like this one are driven by trader supply and demand. Prediction markets can sometimes reflect sharper or more efficient pricing on niche outcomes because traders with specialized knowledge compete directly. However, sportsbooks may move faster on breaking news due to dedicated risk management teams. Comparing this market's implied probability to major sportsbook lines can reveal where consensus differs or where value may exist.
On Kalshi, this market is priced through an order-book mechanism where traders submit buy and sell orders at their chosen probability levels, and the last matched trade sets the mid-market price. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices range from near 0 to 100, representing the implied likelihood of the specified outcome. As traders accumulate positions and new information emerges—such as course conditions, player form, or injury updates—the bid-ask spread and mid-price adjust dynamically. Liquidity and trading volume influence how quickly prices respond to news.
This market resolves around Jul 12, 2026, once the first round of the tournament concludes and the leader is confirmed. The outcome is determined by verified reporting of the official leaderboard at the end of Round 1, checked against credible public sources covering professional golf. Traders holding positions on the correct leader at that time receive their payout, while incorrect positions expire worthless. The resolution process is automatic once the event result is publicly available and confirmed.
Several factors can shift odds in this market before Round 1 concludes. Player injuries, withdrawals, or late-round form changes announced in the days leading up to the tournament will trigger repricing. Weather forecasts affecting course difficulty and playing conditions can influence expectations about which competitors will thrive. Betting syndicates or sharp traders entering large positions may move the market sharply. Real-time scoring during Round 1 itself will cause dramatic repricing as leaderboard leaders emerge, with the market converging toward certainty as the round progresses toward completion.