The Michigan Governor race and Michigan Senate race both have Democrats as favorites on Polymarket and Kalshi, but the two boards could hardly be priced more differently.
- Jocelyn Benson, John James, Abdul El-Sayed and Mike Rogers all have live Michigan Governor election and Senate contracts on both exchanges, and each platform also lists a Governor-Senate combo market.
- Benson vs James polls show leads of 3 to 12 points, while El Sayed vs Rogers polls have narrowed to as little as 2 points among likely voters.
Below you'll find a full breakdown of the current Michigan Governor race and Michigan Senate race odds across the exchanges, but if you want to jump straight in, check out the latest Polymarket promo code or the Kalshi promo code.
Here's exactly where the money sits on both platforms before Election Day on Tuesday, November 3.
| 🗳️ Race | 🏢 Platform | 🏷️ Pick | Price | 🤑 Est. Return on $100 | 📈 Trade It |
|---|---|---|---|---|
| Michigan Governor Race | Polymarket | Jocelyn Benson | YES (93¢) | $107.53 | Trade it on Polymarket! |
| Michigan Governor Race | Polymarket | John James | YES (9¢) | $1,111.11 | Trade it on Polymarket! |
| Michigan Governor Race | Kalshi | Jocelyn Benson | YES (94¢) | $106.38 | Trade it on Kalshi! |
| Michigan Governor Race | Kalshi | John James | YES (7.2¢) | $1,388.89 | Trade it on Kalshi! |
| Michigan Senate Race | Polymarket | Abdul El-Sayed | YES (70¢) | $142.86 | Trade it on Polymarket! |
| Michigan Senate Race | Polymarket | Mike Rogers | YES (31¢) | $322.58 | Trade it on Polymarket! |
| Michigan Senate Race | Kalshi | Abdul El-Sayed | YES (69¢) | $144.93 | Trade it on Kalshi! |
| Michigan Senate Race | Kalshi | Mike Rogers | YES (32¢) | $312.50 | Trade it on Kalshi! |
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Michigan Governor Election and Michigan Senate Race Polymarket Odds: Top Trading Contracts
Polymarket's Michigan contracts are priced 1¢ to 99¢, mapping directly to implied probability, and a "Yes" share on a candidate settles at $1.00 if that candidate wins and $0 if they lose.
Both the Michigan Governor race market and the Senate market resolve on the winner of the November 3 general election.
A methodology note: Polymarket's board only quotes each candidate's own Yes price, so the No prices below are derived by pairing each candidate against their head-to-head opponent's quoted Yes price, since a win for one candidate is a loss for the other in each two-way race.
Michigan Governor Race 2026
Polymarket treats Benson as an overwhelming favorite, and with independent Mike Duggan out of the race since May 21, the board is a straight two-way contest.
Jocelyn Benson (YES 93¢ / NO 9¢, +2 pts)
Benson gained 2 points on the board, which fits a race she leads in the October polling. Marist's October 15 to 18 survey has her up 6 points among likely voters and 11 among registered voters, while Mitchell Research found a 46-39 edge and YouGov a 48-45 lead.
Duggan's exit consolidated the Democratic vote, and Republicans haven't won a Michigan governor's race since 2014.
John James (YES 9¢ / NO 93¢, +<1 pt)
James ticked up less than a point, and the Benson vs James polls explain why traders haven't zeroed him out. Mitchell Research had him within a point of Benson among voters who say they will definitely vote, and YouGov's result was a 3-point race.
He carries a Trump endorsement from June and won the August primary with just over 50% of the vote, but 61% of likely voters in the Marist poll expect Benson to win.
Michigan Senate Race 2026
The Senate board is far tighter, with Polymarket pricing El-Sayed as a clear but not commanding favorite in the only open Democratic-held Senate seat up in a state Trump won in 2024.
Abdul El-Sayed (YES 70¢ / NO 31¢)
El-Sayed won the August 4 Democratic primary with 48.5% of the vote after Mallory McMorrow withdrew and Haley Stevens kept the race close.
El Sayed vs Rogers polls have tightened since then, with Marist showing him up 50-48 among likely voters, down from a 51-44 lead in September, though he still leads by 7 points among registered voters. The RealClearPolitics average gives him a 2.6-point edge.
Mike Rogers (YES 31¢ / NO 70¢)
Rogers lost the 2024 Senate race to Elissa Slotkin by roughly a third of a point, and Republicans haven't won a Michigan Senate race since 1994.
The only recent poll with Rogers in front came from a Tyson Group survey for a group affiliated with him, which had him up 46-44 in early October, while InsiderAdvantage showed El-Sayed ahead 48-46. Both Cook Political Report and Sabato's Crystal Ball rate the contest a toss-up.
Michigan Governor Race and Michigan Senate Race: Kalshi Odds
Kalshi lists the same two races as regulated event contracts, with Yes and No both tradable on every line, so the board shows the full spread rather than a single implied number.
Both contracts resolve by winning party on November 3, and Kalshi's Senate market has already topped $12.1 million in volume, far ahead of the roughly $595,000 in the Governor market.
Michigan Governor Race 2026
Kalshi's Michigan Governor election board sits within a cent or two of Polymarket on both candidates, and its own margin forecast has the Democrat up 9.8 points.
Jocelyn Benson (YES 94¢ / NO 7.3¢, +1.6 pts)
Benson gained 1.6 points on Kalshi, and 94¢ is the firmest price on either exchange.
The 9.8-point margin forecast is wider than the likely-voter Benson vs James polls from YouGov (Benson +3), Marist (+6) and Mitchell Research (+7), a reminder that the market is pricing the probability of a win rather than the size of a poll lead.
John James (YES 7.2¢ / NO 93.7¢, -1.1 pts)
James lost 1.1 points on Kalshi, even as Polymarket nudged him slightly higher.
Kalshi still carries Duggan at 0.1%, a holdover from a campaign that ended May 21, which is why this board isn't a pure head-to-head. James's best argument for a repricing is a polling miss, and the Mitchell sample that has him within a point of Benson among definite voters is the closest thing to evidence for one.
Michigan Senate Race 2026
Kalshi is a cent lighter on the Democrat than Polymarket, with a margin forecast of Democrat +2.7.
Abdul El-Sayed (YES 69¢ / NO 32¢, -1 pt)
El-Sayed slipped 1 point on Kalshi, tracking the narrower El Sayed vs Rogers polls.
The 2.7-point margin forecast lines up with Marist's 2-point likely-voter lead and the 2.6-point RealClearPolitics average, and Marist found him ahead 50% to 44% among independents.
Mike Rogers (YES 32¢ / NO 69¢, +1 pt)
Rogers gained 1 point, and 32¢ is a live price in a state where Trump won by about 1.5 points in 2024 and Slotkin beat Rogers by roughly a third of a point.
Mitchell Research warned that the race could tighten, noting that Republicans have gained late in past Michigan Senate contests.
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Michigan Governor-Senate Combo Bets
Both exchanges let traders bet on how the two races land together, pairing a Governor outcome with a Senate outcome in a single contract.
A Democratic sweep is the clear favorite at 69¢ on both platforms, a Benson win paired with a Rogers win is next at 26¢, and both outcomes involving a James win are long shots. Polymarket labels each line by party while Kalshi names the candidates, but the four pairings are the same.
Kalshi's combo market has about $80,300 in volume, and it shows no quoted NO price on the James and El-Sayed pairing, so that cell reads N/A below.
| 🏢 Platform | 🗳️ Outcome | ✅ YES | ❌ NO | 📈 Trade It |
|---|---|---|---|---|
| Polymarket | Jocelyn Benson and Abdul El-Sayed win (Dem sweep) | YES 69¢ | NO 32¢ | Trade it on Polymarket! |
| Polymarket | Jocelyn Benson and Mike Rogers win (split ticket) | YES 26¢ | NO 75¢ | Trade it on Polymarket! |
| Polymarket | John James and Mike Rogers win (GOP sweep) | YES 5¢ | NO 96¢ | Trade it on Polymarket! |
| Polymarket | John James and Abdul El-Sayed win (split ticket) | YES 4¢ | NO 97¢ | Trade it on Polymarket! |
| Kalshi | Jocelyn Benson and Abdul El-Sayed win (Dem sweep) | YES 69¢ | NO 32¢ | Trade it on Kalshi! |
| Kalshi | Jocelyn Benson and Mike Rogers win (split ticket) | YES 26¢ | NO 75¢ | Trade it on Kalshi! |
| Kalshi | John James and Mike Rogers win (GOP sweep) | YES 6¢ | NO 96¢ | Trade it on Kalshi! |
| Kalshi | John James and Abdul El-Sayed win (split ticket) | YES 3¢ | N/A | Trade it on Kalshi! |
How Polymarket and Kalshi Compare on the Michigan Governor Race and Michigan Senate Race
The two boards agree on every favorite. Benson sits at YES 93¢ on Polymarket and YES 94¢ on Kalshi, while El-Sayed is at YES 70¢ and YES 69¢, respectively.
The underdogs tell the same story in reverse. James trades at YES 9¢ on Polymarket and YES 7.2¢ on Kalshi, and Rogers is at YES 31¢ and YES 32¢.
The friendlier exchange for Republicans flips between the two races. Polymarket gives James nearly 2¢ more in the Governor race, while Kalshi gives Rogers an extra cent in the Senate race, which is small enough to read as noise rather than a signal.
The bigger divergence is between the exchanges and the surveys. Benson vs James polls have ranged from YouGov's 3-point Benson lead to Marist's 11 points among registered voters, yet neither board has Benson below YES 93¢.
El Sayed vs Rogers polls show a similar spread, from Marist's 7-point registered-voter lead to its 2-point likely-voter result, and both markets still price El-Sayed at YES 69¢ or better.
Where the platforms genuinely differ is in contract design: Polymarket's Governor board is a straight two-way market while Kalshi still carries Duggan at 0.1%, and Kalshi's Senate board has far deeper volume than its Governor board.
Michigan Governor Election Price Analysis: Market Price Influencers
Both exchanges have pushed the Michigan Governor election further toward Benson, with Polymarket adding 2 points and Kalshi adding 1.6, while James slipped 1.1 on Kalshi.
The backdrop for the Michigan Governor election favors her. Marist found Democrats up 6 points on the generic ballot among likely voters, and President Trump's approval stands at 42% in Michigan, even as Benson and James traded sharp attacks on gas prices, tariffs and data centers in two October debates.
The Senate board is where the argument lives. El-Sayed gave back a point on Kalshi, Marist's likely-voter lead narrowed from 7 points to 2, and the final Senate debate this week gave Rogers one more chance to close the gap.
The combo boards add one more read. A Benson and El-Sayed sweep at 69¢ matches El-Sayed's standalone Kalshi price, which treats a Benson win as close to automatic if El-Sayed wins, and the 26¢ Benson and Rogers split ticket is the main alternative scenario traders are pricing.
Adding the two El-Sayed pairings gives 73¢ on Polymarket and 72¢ on Kalshi, a few cents above his 70¢ and 69¢ Senate prices, a gap worth discounting given how thin the Kalshi combo market is.
Turnout is the other variable. As of October 20, 789,572 Michigan voters had already cast ballots, or 10.7% of active registered voters, and mail ballot requests ran 17% ahead of the same point in 2022.
The next round of Benson vs James polls and El Sayed vs Rogers polls is the likeliest trigger for a repricing, along with the first early voting numbers. Statewide early voting opens Saturday, October 24 and runs through Sunday, November 1.
| 🗳️ Race | 🏢 Platform | 🏷️ Pick | Price | 🤑 Est. Return on $100 | 📈 Trade It |
|---|---|---|---|---|
| Michigan Governor Race | Polymarket | Jocelyn Benson | YES (93¢) | $107.53 | Trade it on Polymarket! |
| Michigan Governor Race | Polymarket | John James | YES (9¢) | $1,111.11 | Trade it on Polymarket! |
| Michigan Governor Race | Kalshi | Jocelyn Benson | YES (94¢) | $106.38 | Trade it on Kalshi! |
| Michigan Governor Race | Kalshi | John James | YES (7.2¢) | $1,388.89 | Trade it on Kalshi! |
| Michigan Senate Race | Polymarket | Abdul El-Sayed | YES (70¢) | $142.86 | Trade it on Polymarket! |
| Michigan Senate Race | Polymarket | Mike Rogers | YES (31¢) | $322.58 | Trade it on Polymarket! |
| Michigan Senate Race | Kalshi | Abdul El-Sayed | YES (69¢) | $144.93 | Trade it on Kalshi! |
| Michigan Senate Race | Kalshi | Mike Rogers | YES (32¢) | $312.50 | Trade it on Kalshi! |
How to Trade the Michigan Governor Race and Michigan Senate Race on Prediction Markets
Ready to take a position? Check out the best political trading apps and start trading event contracts in minutes on either exchange.
Polymarket
- Read a comprehensive Polymarket review to understand how this exchange operates.
- Follow this guide to trading on Polymarket to learn how to buy your first "Yes" or "No" contract.
- Monitor the relevant tab on Polymarket to stay ahead of the live order book movements.
📝 POLYMARKET TERMS & CONDITIONS
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Kalshi
- Read a comprehensive Kalshi review to understand how this exchange operates.
- Follow this guide to trading on Kalshi to learn how to buy your first "Yes" or "No" contract.
- Monitor the relevant tab on Kalshi to stay ahead of the live order book movements.
📝 KALSHI TERMS & CONDITIONS
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/55. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information. Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA.
Michigan Governor Race and Michigan Senate Race: Final Thoughts
This is two Democratic-favored contests priced with very different confidence: a Michigan Governor race where Benson sits at 93¢ to 94¢ on both exchanges, and a Michigan Senate race where El-Sayed is closer to 70¢ and the polls have narrowed to as little as 2 points.
Watch the combo boards for the clearest read on how traders see the two races landing together. A Democratic sweep at 69¢ is the dominant outcome on both platforms, and the next batch of El Sayed vs Rogers polls and early voting turnout is the most likely thing to change that picture before November 3.
Michigan Governor Race and Michigan Senate Race FAQs
What are the current Michigan Governor race odds?
Jocelyn Benson is trading at 93¢ on Polymarket and 94¢ on Kalshi, while John James sits at 9¢ on Polymarket and 7.2¢ on Kalshi.
Who is favored to win the Michigan Senate race?
Abdul El-Sayed is the favorite at 70¢ on Polymarket and 69¢ on Kalshi, with Mike Rogers priced at 31¢ and 32¢, respectively.
What do the latest Benson vs James polls show?
Marist has Benson up 6 points among likely voters and 11 among registered voters, Mitchell Research had her ahead 46-39 and YouGov had her up 48-45.
What do the latest El Sayed vs Rogers polls show?
Marist has El-Sayed ahead 50-48 among likely voters and InsiderAdvantage had him up 48-46, while a Tyson Group poll for a Rogers-affiliated group had Rogers up 46-44. The RealClearPolitics average puts El-Sayed's lead at 2.6 points.
How do Benson vs James polls compare to Polymarket and Kalshi pricing?
The markets are far more confident than the polling suggests, with both exchanges keeping Benson at 93¢ or better even though YouGov's latest survey had her ahead by just 3 points.
Are El Sayed vs Rogers polls tightening before Election Day?
Among likely voters, yes. Marist's El-Sayed lead shrank from 7 points in September to 2 points in October, and Kalshi moved him down 1 point while Rogers gained 1 point to 32¢.
Why do Polymarket and Kalshi price the Michigan Governor election slightly differently?
The boards are within a couple of cents of each other. Small gaps like James at 9¢ versus 7.2¢ usually reflect different trader bases and order-book depth rather than a real disagreement about the race.
What do the Michigan Governor-Senate combo bets show?
A Benson and El-Sayed sweep trades at 69¢ on both Polymarket and Kalshi, a Benson and Rogers split ticket at 26¢, a James and Rogers sweep at 5¢ on Polymarket and 6¢ on Kalshi, and a James and El-Sayed split at 4¢ on Polymarket and 3¢ on Kalshi.
When does early voting start for the Michigan Governor election?
Statewide early voting opens Saturday, October 24 and runs through Sunday, November 1, and Election Day is Tuesday, November 3.
How do I trade the Michigan Governor race and Michigan Senate race odds?
Sign up on Polymarket or Kalshi, fund your account, and buy a "Yes" or "No" share on the contract you want, then hold it to resolution or sell it back to the market at any point before Election Day.
