270toWin maps Polymarket 2026 House prices into familiar electoral-ratings tiers
Election data site 270toWin published an interactive map translating Polymarket's 2026 U.S. House election prices into a four-tier color scale familiar to political forecasters. Districts are ranked from most to least competitive, with blue or red flip labels showing the party favored in each market. The four tiers run from Tilt (55 to under 65 cents) through Leans, Likely, and Safe (90 to 100 cents). The visualization treats prediction-market asking prices as de facto electoral ratings.
For traders, the map makes Polymarket's granular House prices legible at a glance, turning 435 individual contracts into a tradable landscape. The Polymarket and Kalshi align on 2026 House odds, split on 2028 presidential convergence means the 2026 midterms now carry less cross-platform edge, so a single-venue view like this risks baking in stale levels if Kalshi moves first.
For political journalists, the color-coded format collapses a month's worth of district polling into one screen, creating a new reference point that campaign strategists may cite. The real risk is overconfidence: Safe and Likely buckets imply certainty that thin local markets may not support, and any October district scandal could reprice a 92-cent contract overnight.