OK-01 House Election Winner

This market covers the winner of Oklahoma's 1st Congressional District seat in the U.S. House of Representatives, to be decided in the November 3, 2026 midterm elections. On Polymarket, the market resolves to the party of the winning candidate, while Kalshi frames it as a Yes/No on whether the sworn-in member for the 2027 term is a Democrat. Both platforms are listing the event live, with Polymarket carrying most of the volume at roughly $20,800 versus about $4,200 on Kalshi. The Republican Party is the clear favourite, with a cross-platform consensus of 90.7%. Polymarket prices it at 90.5% and Kalshi at 90.7%, a spread of just 0.20 points, indicating tight agreement between the two venues. The Democratic side of the ledger sits at 8.5% on Polymarket, consistent with the Republican pricing there. Kalshi separately lists Democrat John Croisant as a named contract at 13.0%, which is not directly comparable to the party-level Democratic line but sits above it. The takeaway is that Polymarket and Kalshi are aligned in treating OK-01 as a heavily Republican-favoured race, with essentially no meaningful cross-platform disagreement on the party outcome.