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 20, 5:59 PM EST
Kalshi
The Miami Dolphins play the San Francisco 49ers in an NFL contest, with markets focused on which team will hold the lead at halftime. The result hinges exclusively on first-half scoring, with no consideration given to the final game outcome.
This market determines the winner of the first half in the MIA Dolphins vs SF 49ers Pro Football game scheduled for Sep 20, 2026. If San Francisco scores more points than Miami in the first half, the 'San Francisco wins 1st Half' market resolves to Yes. If Miami scores more points than San Francisco in the first half, the 'Miami wins 1st Half' market resolves to Yes. If both teams score an equal number of points in the first half, the 'Tie 1st Half' market resolves to Yes, and all team-specific markets resolve to No. Only points scored during the first half count toward resolution.
Prediction market odds often reflect the collective wisdom of a diverse group of bettors, and can sometimes differ from traditional sportsbook odds. Sportsbooks set lines based on their own models and to balance action, while this market is driven purely by supply and demand among traders. If a significant number of people believe one team is more likely to win the first half, the price for that outcome will increase, potentially moving further away from initial sportsbook lines. It’s common to see discrepancies, especially as new information emerges and impacts perceived probabilities.
On Kalshi, this market is priced through a continuous order book, meaning traders can buy and sell contracts representing each possible outcome – a Dolphins first-half win or a 49ers first-half win. The price of each contract fluctuates based on supply and demand. As more traders buy contracts for a particular team, the price increases, indicating a higher perceived probability of that team winning the first half. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. This dynamic pricing mechanism allows the market to quickly incorporate new information and adjust expectations as game day approaches.
This market resolves around Sep 20, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the market will determine which team is leading at the end of the first half of the MIA Dolphins vs. SF 49ers game. The official game results, as reported by a trusted sports data source, will be used to determine the winning outcome. Traders will then be paid out based on their positions in the market, reflecting the final result of the first half.
Several factors could influence this market leading up to and during the game. Any news regarding key player injuries for either the Dolphins or the 49ers would likely cause significant price movement. Changes in weather forecasts, particularly if they favor one team's style of play, could also shift expectations. Furthermore, as the game progresses, live updates – such as early scoring drives or defensive stops – will rapidly impact the prices in this market, reflecting the evolving probabilities of each team winning the first half.