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Polymarket edges Kalshi on Brier scores for both chambers in 2026 midterms, RotoWire reports

  • Polymarket edges Kalshi on Brier scores for both chambers in 2026 midterms, RotoWire reports — Before polls closed, Kalshi priced Democrats at 93.3 percent for the House and 75.0 percent for the Senate, against Polymarket at 94.5 percent and 75.5 percent, and Democrats won both. RotoWire put Polymarket's Brier score at 0.0030 for the House and 0.0600 for the Senate, against Kalshi at 0.0045 and 0.0625, with lower scores indicating better accuracy. (RotoWire)

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