Across 3 prediction market platforms, "Will Arsenal win the 2025–26 Champions League?" has a consensus probability of 29.1%. Polymarket: 28.5%, Gemini: 32.0%, Manifold: 26.8%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.
Computed from 3 platforms using geometric mean of odds (Satopaa et al., 2014). This method was validated by the IARPA ACE forecasting tournament as the most accurate probability aggregation technique. Full methodology →
The only prediction market aggregator with academically validated cross-platform consensus.