Live prediction market odds for Maine Senate Exact Outcome. Compare prices across Kalshi and PredictIt.
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Kalshi / PredictIt
2026-11-03
Graham Platner leads the “Maine Senate Exact Outcome” event at 69.3% implied probability, followed by Janet Mills at 5.2%. A 50.5% cross-platform spread signals an active arbitrage window.
Maine Senate Exact Outcome is a prediction market event currently tracked across 2 platforms (Kalshi, PredictIt). Graham Platner leads at 69% implied probability, making it the market favorite. Other contenders include Janet Mills at 5%.
Graham Platner currently leads at 69% implied probability. Behind Graham Platner, Janet Mills at 5% are the next closest contenders. The 50.5% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here are the latest odds across Kalshi, PredictIt: Graham Platner: 44¢ on Kalshi, 95¢ on PredictIt. Janet Mills: 5¢ on Kalshi, 5¢ on PredictIt. The 50.5% spread across platforms highlights where markets disagree — a gap traders can exploit by buying low on one platform and selling high on another.
A price of 69¢ means the market estimates a 69% probability that Graham Platner will be the outcome. Buying one share at 69¢ pays out $1.00 if correct — a 45% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Graham Platner
69.3% avg
