How to Bet on the Maine Senate Race: Jackson vs Collins
Looking to trade on Jackson vs. Collins in Maine? Learn how ranked-choice voting affects contract settlement dates, how to manage live positions on election night, and how to buy Yes/No contracts on CFTC-regulated prediction exchanges.
Sam Eaton - November 2, 2026, 3:00 PM EST
3 Minute ReadHow to Bet on the Maine Senate Race: Jackson vs Collins
To bet on the Maine Senate race, sign up with Kalshi or Polymarket US, open the Maine Senate winner market and buy Yes contracts on Troy Jackson (D) or Susan Collins (R). Each winning contract pays $1. On November 2, Jackson traded at about 73¢ and Collins at about 27¢.
New users can claim a bonus with Kalshi promo code ODDSCHECKER or Polymarket promo code CHECK when they sign up through oddschecker.
Step 1: Open your account
- Kalshi: enter ODDSCHECKER at sign-up, verify your phone and ID, and get a $25 bonus credit after the qualifying trading volume.
- Polymarket US: tap "I have a referral code", enter CHECK, then make your first deposit and trade for a $25 trading bonus. Not available in Nevada.
Step 2: Find the Maine market
On Kalshi, look under Elections for the Maine Senate winner market. On Polymarket US, click Maine on the Midterms Hub map.
Step 3: Choose a side and check the payout
Your trade | Cost for 100 contracts | Return if right | Profit |
|---|---|---|---|
Jackson at 73¢ | $73 | $100 | $27 |
Collins at 27¢ | $27 | $100 | $73 |
Step 4: Understand ranked-choice voting
Maine uses ranked-choice voting in its general election, and independent Phillip Rench is also on the ballot. If neither Jackson nor Collins passes 50% of first choices, the count goes to further rounds, which can delay the final result by days. Read the market's settlement rules before you trade so you know when you'd be paid.
Step 5: Manage your position
You can sell at the current price any time before settlement. With polls showing a near tie, prices could move sharply on election night.
What to weigh before trading Maine
- The case for Jackson: markets have favored him for months, he leads narrowly in the polling average (48.7% to 47.5% in late October), and Maine voted for Kamala Harris in 2024.
- The case for Collins: she has held the seat since 1997, and in 2020 she trailed in many polls but won comfortably. Several late-October polls show a tied race.
- Get more detail: read our Maine Senate odds update and compare prices on our US politics odds page.
Maine Senate betting FAQs
Can I legally bet on the Maine Senate race?
Yes, through CFTC-regulated prediction markets such as Kalshi and Polymarket US, subject to age and state rules. Sportsbooks can't offer election betting.
Who is favored in Maine?
Troy Jackson (D), at 73% across the platforms on November 2
Could the Maine result take longer than election night?
Yes. If ranked-choice rounds are needed, the final count can take several days.
Odds are from Kalshi and Polymarket on the dates shown and change constantly. Kalshi and Polymarket US are CFTC-regulated exchanges. Age and state eligibility rules apply, and promo terms apply. The Polymarket offer is not available in Nevada. Trading event contracts carries a risk of loss. If you or someone you know has a gambling problem, call 1-800-GAMBLER.
