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Politics·Primaries

MA-06 Democratic Primary Winner

Market icon
Politics·Primaries

MA-06 Democratic Primary Winner

Dan Koh 70%

Jamie Zahlaway Belsito 13.6%

Seth Moulton 12.1%

Kevin Larivee 12.0%

Polymarket
NEW

Dan Koh 70%

Jamie Zahlaway Belsito 13.6%

Seth Moulton 12.1%

Kevin Larivee 12.0%

Polymarket
NEW

Dan Koh

$3,520 Vol.

70%

Jamie Zahlaway Belsito

$0 Vol.

14%

Seth Moulton

$0 Vol.

12%

Kevin Larivee

$1,228 Vol.

12%

Tram Nguyen

$0 Vol.

5%

Diann Slavit Baylis

$0 Vol.

4%

John Beccia

$0 Vol.

3%

Dominick Pangallo

$0 Vol.

3%

Rick Jakious

$2,286 Vol.

3%

Rachel Creemers

$0 Vol.

2%

Mariah Lancaster

$0 Vol.

13%

Beth Andres-Beck

$1,341 Vol.

1%

This market will resolve according to the candidate who wins the nomination for the Democratic Party to contest the MA-06 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Democratic primary will take place on September 15, 2026. If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official Democrat sources, including https://democrats.org/. Any replacement of the nominee before election day will not change the resolution of the market.Dan Koh's 69% implied probability as the MA-06 Democratic primary winner on September 1 reflects trader consensus on his dominant grassroots fundraising, with February ActBlue reports released this week showing him raising over $300,000—far outpacing rivals—and leading in cash-on-hand. This open-seat race, triggered by incumbent Seth Moulton's Senate challenge against Ed Markey, features a crowded field where Koh, a former Biden White House aide, benefits from recent endorsements like Pete Buttigieg's amid recent forums highlighting policy clashes on health care and immigration. Challengers Mariah Lancaster, Kevin Larivee, and Moulton linger around 12-13% as distant alternatives, but no public polls exist, leaving traders focused on financial momentum and local support in this North Shore district.

Dan Koh's 69% implied probability as the MA-06 Democratic primary winner on September 1 reflects trader consensus on his dominant grassroots fundraising, with February ActBlue reports released this week showing him raising over $300,000—far outpacing rivals—and leading in cash-on-hand. This open-seat race, triggered by incumbent Seth Moulton's Senate challenge against Ed Markey, features a crowded field where Koh, a former Biden White House aide, benefits from recent endorsements like Pete Buttigieg's amid recent forums highlighting policy clashes on health care and immigration. Challengers Mariah Lancaster, Kevin Larivee, and Moulton linger around 12-13% as distant alternatives, but no public polls exist, leaving traders focused on financial momentum and local support in this North Shore district.

Experimental AI-generated summary referencing Polymarket data · Updated
This market will resolve according to the candidate who wins the nomination for the Democratic Party to contest the MA-06 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Democratic primary will take place on September 15, 2026. If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official Democrat sources, including https://democrats.org/. Any replacement of the nominee before election day will not change the resolution of the market.Dan Koh's 69% implied probability as the MA-06 Democratic primary winner on September 1 reflects trader consensus on his dominant grassroots fundraising, with February ActBlue reports released this week showing him raising over $300,000—far outpacing rivals—and leading in cash-on-hand. This open-seat race, triggered by incumbent Seth Moulton's Senate challenge against Ed Markey, features a crowded field where Koh, a former Biden White House aide, benefits from recent endorsements like Pete Buttigieg's amid recent forums highlighting policy clashes on health care and immigration. Challengers Mariah Lancaster, Kevin Larivee, and Moulton linger around 12-13% as distant alternatives, but no public polls exist, leaving traders focused on financial momentum and local support in this North Shore district.

Dan Koh's 69% implied probability as the MA-06 Democratic primary winner on September 1 reflects trader consensus on his dominant grassroots fundraising, with February ActBlue reports released this week showing him raising over $300,000—far outpacing rivals—and leading in cash-on-hand. This open-seat race, triggered by incumbent Seth Moulton's Senate challenge against Ed Markey, features a crowded field where Koh, a former Biden White House aide, benefits from recent endorsements like Pete Buttigieg's amid recent forums highlighting policy clashes on health care and immigration. Challengers Mariah Lancaster, Kevin Larivee, and Moulton linger around 12-13% as distant alternatives, but no public polls exist, leaving traders focused on financial momentum and local support in this North Shore district.

Experimental AI-generated summary referencing Polymarket data · Updated

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Frequently Asked Questions

"MA-06 Democratic Primary Winner" is a prediction market on Polymarket with 12 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Dan Koh" at 70%, followed by "Jamie Zahlaway Belsito" at 14%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 70¢ implies that the market collectively assigns a 70% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"MA-06 Democratic Primary Winner" is a newly created market on Polymarket, launched on Nov 25, 2025. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "MA-06 Democratic Primary Winner," browse the 12 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "MA-06 Democratic Primary Winner" is "Dan Koh" at 70%, meaning the market assigns a 70% chance to that outcome. The next closest outcome is "Jamie Zahlaway Belsito" at 14%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "MA-06 Democratic Primary Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.