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Will Donavan McKinney be the Democratic Nominee for MI-13?

48.7%
Consensus Probability (Model B — Geometric Mean of Odds)
2 platforms · 20pp spread · $20K

Across 2 prediction market platforms, "Will Donavan McKinney be the Democratic Nominee for MI-13?" has a consensus probability of 48.7%. Polymarket: 38.5%, Manifold: 59.0%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Polymarket
View →
38%
$20K
Manifold
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59%
6 traders
Probability Over Time
All 6 Consensus Models
Market Details
Polymarket
Updated 2m ago
Volume
$20K
Liquidity
$18K
Bid / Ask
38.0% / 39.0%
Spread
1.0%
Opened
Apr 2026
Resolves
Aug 2026
This market will resolve according to the candidate who wins the nomination for the Democratic Party to contest the MI-13 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Democratic primary will take place on August 4, 2026. If …
Manifold
Updated 3h ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves
Aug 2026

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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