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Politics·Primaries

MA-06 Democratic Primary Winner

icon for MA-06 Democratic Primary Winner
Politics·Primaries

MA-06 Democratic Primary Winner

Dan Koh 70%

Diann Slavit Baylis 8.8%

Tram Nguyen 4.0%

Mariah Lancaster 2.9%

Polymarket

$36,082 Vol.

Dan Koh 70%

Diann Slavit Baylis 8.8%

Tram Nguyen 4.0%

Mariah Lancaster 2.9%

Polymarket

$36,082 Vol.

Dan Koh

$4,370 Vol.

70%

Diann Slavit Baylis

$5,116 Vol.

9%

Tram Nguyen

$4,197 Vol.

4%

Mariah Lancaster

$1,886 Vol.

3%

John Beccia

$1,724 Vol.

2%

Dominick Pangallo

$6,083 Vol.

2%

Jamie Zahlaway Belsito

$2,179 Vol.

2%

Kevin Larivee

$1,499 Vol.

1%

Rachel Creemers

$2,172 Vol.

21%

Rick Jakious

$3,469 Vol.

1%

Seth Moulton

$1,811 Vol.

18%

Beth Andres-Beck

$1,577 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.In the open-seat MA-06 Democratic primary set for September 1, 2026, trader consensus heavily favors Dan Koh at 82.5% implied probability, driven by his unmatched early momentum after incumbent Seth Moulton's shift to a U.S. Senate challenge against Ed Markey. Koh's January fundraising haul of $204,000 far exceeded rivals' combined totals, complemented by high-profile endorsements from Pete Buttigieg, former Labor Secretary Marty Walsh, ex-Rep. John Tierney, and local leaders like Doug Thompson. As the first candidate to secure ballot access in late March with over 2,000 signatures, Koh benefits from a fragmented field of over 10 contenders, including Rachel Creemers and Diann Slavit Baylis at 7.1% and 6.7%, amid no public polls to date. Upcoming forums and further endorsements could influence the closely watched race.

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.
Volume
$36,082
End Date
Sep 15, 2026
Market Opened
Nov 25, 2025, 3:39 PM ET

Resolver

0x2F5e3684c...
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.
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.In the open-seat MA-06 Democratic primary set for September 1, 2026, trader consensus heavily favors Dan Koh at 82.5% implied probability, driven by his unmatched early momentum after incumbent Seth Moulton's shift to a U.S. Senate challenge against Ed Markey. Koh's January fundraising haul of $204,000 far exceeded rivals' combined totals, complemented by high-profile endorsements from Pete Buttigieg, former Labor Secretary Marty Walsh, ex-Rep. John Tierney, and local leaders like Doug Thompson. As the first candidate to secure ballot access in late March with over 2,000 signatures, Koh benefits from a fragmented field of over 10 contenders, including Rachel Creemers and Diann Slavit Baylis at 7.1% and 6.7%, amid no public polls to date. Upcoming forums and further endorsements could influence the closely watched race.

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.
Volume
$36,082
End Date
Sep 15, 2026
Market Opened
Nov 25, 2025, 3:39 PM ET

Resolver

0x2F5e3684c...
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.

Beware of external links.

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 "Rachel Creemers" at 21%. 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.

As of today, "MA-06 Democratic Primary Winner" has generated $36.1K in total trading volume since the market launched on Nov 25, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

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 "Rachel Creemers" at 21%. 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.