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Will Mandela Barnes win the 2026 Wisconsin Governor Democratic primary election?

51.0%
Consensus Probability (Model A — Inverse-Variance Log-Odds)
2 platforms · 0pp spread · $9K

Across 2 prediction market platforms, "Will Mandela Barnes win the 2026 Wisconsin Governor Democratic primary election?" has a consensus probability of 51.0%. Predictit: 51.0%, Polymarket: 55.0%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Predictit
View →
51%
Polymarket
View →
55%
$9K
Probability Over Time
All 4 Consensus Models
Market Details
Predictit
Updated 1h ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Jun 2026
Resolves
Polymarket
Updated 27d ago
Volume
$9K
Liquidity
$5K
Bid / Ask
53.0% / 57.0%
Spread
4.0%
Opened
Apr 2026
Resolves
Aug 2026
This market will resolve according to the winner of the Democratic Primary for Governor of Wisconsin, scheduled to take place on August 11, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off. If no 2026 Wisconsin …

About This Consensus

Computed from 2 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 →

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