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Will the Republicans win the Idaho Senate race in 2026?

91.4%
Consensus Probability (Model A — Inverse-Variance Log-Odds)
3 platforms · 0pp spread · $11K

Across 3 prediction market platforms, "Will the Republicans win the Idaho Senate race in 2026?" has a consensus probability of 91.4%. Predictit: 97.0%, Polymarket: 91.5%, Manifold: 91.4%. Consensus via geometric mean of odds (Satopaa et al., 2014), validated by IARPA ACE tournament.

Platform Comparison — white line = consensus
Predictit
View →
97%
Polymarket
View →
92%
$11K
Manifold
View →
91%
6 traders
Probability Over Time
All 4 Consensus Models
Market Details
Predictit
Updated 21m ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves
Polymarket
Updated 27d ago
Volume
$11K
Liquidity
$9K
Bid / Ask
91.0% / 92.0%
Spread
1.0%
Opened
Apr 2026
Resolves
This market will resolve according to the winner of the 2026 midterm Idaho U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democra…
Manifold
Updated 31m ago
Volume
Liquidity
Bid / Ask
— / —
Spread
Opened
Apr 2026
Resolves
Dec 2026

About This Consensus

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 →

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