Compare Maine Democratic Senate Primary Winner prediction market odds side by side across Polymarket, Kalshi. Platforms show similar odds, with an average spread of just 1.5pp. Close agreement often signals strong market consensus. With $38.8K in combined trading volume across 7 outcomes, this is one of the notable cross-platform prediction markets.
Graham PlatnerCost: 96¢ per pair → pays $1 at resolution. Gross spread 4.0pp before fees.
View all arbs| Outcome | Spread | ||
|---|---|---|---|
![]() Graham Platner | 72%-1.0 | 76%±0 | 4.0pp spread |
![]() Janet Mills | 28%+2.5 |
| 1.5pp spread |
![]() Troy Jackson | 0%— | 1%±0 | 0.9pp spread |
![]() Dan Kleban | 0%— | 1%±0 | 0.9pp spread |
![]() Jordan Wood | 0%— | 1%±0 | 0.9pp spread |
![]() Jared Golden | 0%— | 1%±0 | 0.9pp spread |
![]() Chellie Pingree | 0%— | 1%±0 | 0.9pp spread |