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: Sep 10, 10:46 PM EST
Kalshi
This set of markets focuses on predicting the point differential in the first half of an upcoming professional football game. Bettors can choose various point spreads to wager on, depending on whether they believe one team will dominate the other by a specific margin in the initial half of play.
All markets resolve based solely on the point differential in the first half of the designated game. Each market specifies a different point spread threshold, with outcomes determined by whether the winning team exceeds that threshold. Only points scored during the first half are considered, and all markets are independent, allowing for varied betting options on the expected margin of victory. The governing body's official rules apply to the game itself, but Kalshi disclaims any affiliation with the league.
Prediction market odds often reflect the wisdom of the crowd, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, incorporating a profit margin. This market, however, is driven by individuals trading based on their own analysis and information. Therefore, you may observe discrepancies between the odds offered on Kalshi and those found at major sportsbooks. These differences can arise from varying levels of information, differing interpretations of data, or simply the collective opinion of traders on Kalshi.
On Kalshi, this market is priced through a continuous order book where traders buy and sell contracts representing different point spreads for the first half of the 49ers-Rams game. The price of each contract reflects the probability of that spread occurring, as determined by supply and demand. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy contracts for a particular spread, the price increases, indicating a higher perceived probability. Conversely, increased selling pressure drives the price down. This dynamic pricing mechanism allows the market to efficiently aggregate information and reflect the collective expectations of participants.
This market resolves around Sep 11, 2026, once the official first half spread of the 49ers-Rams game is verifiable from credible public reporting. The outcome will be determined by the actual point difference between the two teams at halftime. The platform will then verify the result against publicly available data to determine which contracts will pay out. Traders who correctly predicted the first half spread will receive a payout based on the contract’s price at the time of resolution. This ensures a transparent and verifiable outcome for this market.
Several factors could influence the price of this market before the game concludes. News regarding key player injuries to either the 49ers or the Rams would likely have a significant impact. Changes in weather forecasts, particularly if they suggest conditions favorable to one team’s style of play, could also shift the market. Unexpected announcements about coaching strategies or team morale might also move the price. Finally, large trading volume from informed participants on Kalshi could signal new information or a shift in sentiment, causing the 49ers-Rams first half spread to fluctuate.