Resolves YES if Chicago Cubs win their MLB game against Arizona Diamondbacks on 2026-08-26, per mlb.com official results. Resolves NO if Arizona Diamondbacks 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: mlb.com official results
Market 51% · Claude 50% · GPT 49%
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Polymarket YES price as of 2026-08-26T09:02:49.923418Z for: Chicago Cubs vs. Arizona Diamondbacks
Without specific information about team performance, pitching matchups, or standings for August 2026, I rely on base rates. In MLB, home field advantage gives roughly 54% win probability to the home team. Without knowing the venue for this game, and given both teams are competitive franchises with roughly similar long-term win rates, the base probability is near 50%. The Cubs have historically been slightly below .500 over long periods, but this is insufficient to meaningfully adjust from 50%. I'll estimate 0.5 as my best estimate.
Absent browsing, I rely on base rates and general team strength. Cubs and Diamondbacks are fairly comparable NL teams in this era, so a near-coin-flip is appropriate. I give Arizona a small edge if they are at home, but uncertainty about venue, starting pitchers, lineups, injuries, and travel keeps the estimate close to 50%. I slightly lean against Chicago to account for home-field uncertainty and the possibility Arizona is the marginally stronger side in this matchup.
Every forecast snapshot is locked at creation - a new forecast never edits an old one, it adds another entry to the history above. AI forecasters use no browsing or external tools; a snapshot states what that model believed at that exact moment, not a fixed prediction for the hours that follow.