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%

BETA
Dashboards
Tour
All
Sports
1st Round 3-Ball: Brennan/Hall/Putnam
kalshi

1st Round 3-Ball: Brennan/Hall/Putnam

Volume:
$3,425

Michael Brennan beats Hall and Putnam

 - Kalshi

Michael Brennan beats Hall and Putnam - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 19, 2026

Closed: Jun 18, 8:39 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Michael Brennan beats Hall and Putnam

View
100%
Yes 100¢No 0¢
100¢
N/A
$3,114
N/A
N/A
$3,114
Settled
Yes
kalshi

Harry Hall beats Brennan and Putnam

0%
Yes 0¢No 100¢
100¢
N/A
$180
N/A
N/A
$180
Settled
No
kalshi

Andrew Putnam beats Brennan and Hall

0%
Yes 0¢No 100¢
100¢
N/A
$131
N/A
N/A
$131
Settled
No
Total markets: 3

Description

Three professional golfers compete in a 3-ball matchup during the first round of the 2026 U.S. Open. The golfer with the lowest score for the round wins the matchup.

Kalshi

Resolution is determined by the lowest score achieved by each participant in the 1st round of the 2026 U.S. Open. If multiple participants are tied for the lowest score at the end of the round, the Yes payout is divided equally among all tied participants, with each receiving $1/N rounded down to the nearest cent, where N equals the number of tied participants. The No payout equals $1 minus the Yes payout. If any golfer withdraws prior to teeing off, all markets resolve to fair market value.

Frequently asked questions

On Kalshi, the dashboard for the Brennan/Hall/Putnam 3-Ball matchup displays real-time odds and price movements as traders position themselves on potential outcomes. You can monitor the current implied probability of each competitor, historical price charts, and trading volume to understand market sentiment. The interface lets you track how confidence in each player has shifted over time, giving you a transparent view of collective prediction activity leading up to the event.

Prediction market odds often diverge from traditional sportsbook lines because they reflect real-time trader positioning rather than fixed bookmaker spreads. Sportsbooks manage risk through margin and adjust lines to balance action, while prediction markets aggregate decentralized participant beliefs continuously. This market may offer different implied probabilities than major sportsbooks, especially as new information emerges or trading volume shifts. Comparing the two can reveal where the crowd sees value differently than professional oddsmakers.

On Kalshi, this market is priced through an order-book mechanism where traders buy and sell contracts representing each outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Prices reflect the balance of supply and demand; as more traders favor one competitor, that contract's price rises and others fall. The implied probability of each outcome is derived directly from the contract price, so the market continuously reprices itself as new bets arrive and sentiment evolves.

This market resolves around Jun 18, 2026, once the event concludes and results are verifiable from credible public sources. The outcome will be confirmed based on the official results of the 3-Ball competition, with the winning prediction determined by which competitor finishes in the specified position or achieves the predicted result. Resolution timing may shift slightly if official confirmation is delayed.

Market prices may shift based on recent performance data, player form, injury reports, or changes in tournament conditions. Media coverage and expert analysis can influence trader sentiment, as can betting patterns from informed participants. Weather, course difficulty, or head-to-head matchup history may also drive repricing. As the event date approaches, any official announcements or late-breaking news about the competitors could trigger significant movement in this market.