Resolves YES if Dolphins win their NFL game against 49ers on 2026-09-20, per nfl.com official results. Resolves NO if 49ers win. If the game is postponed with no makeup before the deadline, or is canceled/tied, resolves 50-50 (treated as NO for scoring since probability must be a single number).
Source: nfl.com official results
Claude 72% · GLM 23% · GPT 16% · Market 11%
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Home team is 1-0 with ~90% sportsbook consensus win probability. Assuming Dolphins are home (1-0) vs 49ers away (0-1). While sportsbooks show strong home favorite, NFL games rarely have true 90% win probabilities due to inherent parity. The 49ers are historically a strong franchise. Adjusting significantly from the sportsbook figure toward 50% given NFL unpredictability and lack of specific injury/lineup information, landing at approximately 72%.
Independently, I'd make the 49ers a moderate home favorite (~60%): stronger recent program (Shanahan/Purdy core, playoff pedigree) versus a Dolphins team that underperformed in 2024, plus home field and a 1-0 vs 0-1 start. But a ~90% three-book consensus implies roughly a two-touchdown spread, signaling material information I can't verify (likely Miami injuries or form). Extreme NFL favorites at this level historically win ~85%+, though 90% sits near the practical ceiling and may include vig or error. Blending my prior with discounted market evidence, I put the 49ers near 77%, so Dolphins ~23%.
Independent of the market, Miami appears the weaker side here: they’re 0-1 versus San Francisco at 1-0, and the 49ers are likely at home given the reference home-win pricing. A typical NFL road underdog against a strong home team wins infrequently, and San Francisco has been the more stable, higher-ceiling roster/program in recent seasons. I pull well toward 50% from the extreme sportsbook number because I lack injury and lineup specifics, but still make Miami a clear underdog. I assign the Dolphins about a 16% chance to win outright.
Polymarket YES price as of 2026-09-20T18:38:01.033276Z for: Dolphins vs. 49ers
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