MA-06 Democratic Primary Winner

OpenOutcomes19as of

This hub tracks 19 outcomes of this event, with the news signals that move them.

What are the odds right now?

Each outcome shows its current market price — the market-implied probability it happens. Click an outcome for its full market page.

Dan Koh100%
Dominick Pangallo0%
Seth Moulton0%
Beth Andres-Beck0%
John Beccia0%
Rick Jakious0%
Mariah Lancaster0%
Tram Nguyen0%
Jamie Zahlaway Belsito0%
Rachel Creemers0%
Kevin Larivee0%
Diann Slavit Baylis0%
Candidate J
Candidate K
Candidate L
Candidate M
Candidate N
Candidate O
Other

What moved the odds?

30 AI-matched news signals available across this event, newest first. Entry price is the called side when the news hit; the signed return marks it against the outcome’s latest price as of .

Dan Kohnbcnews.com98%match97¢+3%
Live: Dan Koh wins the Democratic primary for Massachusetts's 6th Congressional District, NBC News projects
Dan KohDecision Desk (DDHQ)98%match97¢+3%
Decision Desk HQ projects Dan Koh wins the MA US House 6 Democratic Primary • • #DecisionMade: 10:26 PM EDT
Dan Kohapnews.com98%match97¢+3%
Dan Koh wins Democratic nomination for U.S. House in Massachusetts' 6th Congressional District
Dan KohDecision Desk (DDHQ)98%match97¢+3%
DDHQ Race Update (est. 62% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 30,303 (40.1%) • Tram Nguyen (D): 23,312 (30.9%) • John Beccia (D): 8,900 (11.8%) • • Follow more results here: •
John BecciaDecision Desk (DDHQ)97%match100¢
DDHQ Race Update (est. 62% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 30,303 (40.1%) • Tram Nguyen (D): 23,312 (30.9%) • John Beccia (D): 8,900 (11.8%) • • Follow more results here: •
Tram NguyenDecision Desk (DDHQ)98%match99¢+1%
DDHQ Race Update (est. 62% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 30,303 (40.1%) • Tram Nguyen (D): 23,312 (30.9%) • John Beccia (D): 8,900 (11.8%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match97¢+3%
DDHQ Race Update (est. 52% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 25,984 (41.1%) • Tram Nguyen (D): 19,554 (31.0%) • John Beccia (D): 7,496 (11.9%) • • Follow more results here: •
John BecciaDecision Desk (DDHQ)97%match100¢
DDHQ Race Update (est. 52% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 25,984 (41.1%) • Tram Nguyen (D): 19,554 (31.0%) • John Beccia (D): 7,496 (11.9%) • • Follow more results here: •
Tram NguyenDecision Desk (DDHQ)98%match99¢+1%
DDHQ Race Update (est. 52% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 25,984 (41.1%) • Tram Nguyen (D): 19,554 (31.0%) • John Beccia (D): 7,496 (11.9%) • • Follow more results here: •
Seth MoultonPunchbowl Reporter97%match100¢
Markey defeats Rep. Seth Moulton, a HASC member and the top Dem on the Strategic Forces Subcommittee, in the Massachusetts Senate Democratic primary.
Dan KohDecision Desk (DDHQ)98%match97¢+3%
DDHQ Race Update (est. 46% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 23,325 (42.1%) • Tram Nguyen (D): 16,199 (29.2%) • John Beccia (D): 6,864 (12.4%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match97¢+3%
DDHQ Race Update (est. 38% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 18,339 (40.8%) • Tram Nguyen (D): 13,156 (29.2%) • John Beccia (D): 5,701 (12.7%) • • Follow more results here: •
John BecciaDecision Desk (DDHQ)97%match100¢
DDHQ Race Update (est. 38% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 18,339 (40.8%) • Tram Nguyen (D): 13,156 (29.2%) • John Beccia (D): 5,701 (12.7%) • • Follow more results here: •
Tram NguyenDecision Desk (DDHQ)98%match99¢+1%
DDHQ Race Update (est. 38% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 18,339 (40.8%) • Tram Nguyen (D): 13,156 (29.2%) • John Beccia (D): 5,701 (12.7%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match98¢+2%
DDHQ Race Update (est. 26% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 13,105 (41.4%) • Tram Nguyen (D): 9,612 (30.4%) • John Beccia (D): 3,861 (12.2%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match95¢+5%
DDHQ Race Update (est. 15% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 7,457 (42.6%) • Tram Nguyen (D): 4,480 (25.6%) • John Beccia (D): 2,735 (15.6%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match92¢+9%
DDHQ Race Update (est. 9% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 4,275 (40.0%) • Tram Nguyen (D): 3,266 (30.6%) • John Beccia (D): 1,559 (14.6%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match91¢+10%
DDHQ Race Update (est. 7% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 3,584 (41.0%) • Tram Nguyen (D): 2,940 (33.7%) • John Beccia (D): 865 (9.9%) • Jamie Belsito (D): 714 (8.2%) • • Follow more results here: •
John BecciaDecision Desk (DDHQ)97%match100¢
DDHQ Race Update (est. 7% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 3,584 (41.0%) • Tram Nguyen (D): 2,940 (33.7%) • John Beccia (D): 865 (9.9%) • Jamie Belsito (D): 714 (8.2%) • • Follow more results here: •
Tram NguyenDecision Desk (DDHQ)98%match92¢+9%
DDHQ Race Update (est. 7% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 3,584 (41.0%) • Tram Nguyen (D): 2,940 (33.7%) • John Beccia (D): 865 (9.9%) • Jamie Belsito (D): 714 (8.2%) • • Follow more results here: •
Jamie Zahlaway BelsitoDecision Desk (DDHQ)96%match100¢
DDHQ Race Update (est. 7% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 3,584 (41.0%) • Tram Nguyen (D): 2,940 (33.7%) • John Beccia (D): 865 (9.9%) • Jamie Belsito (D): 714 (8.2%) • • Follow more results here: •
Dan KohDecision Desk (DDHQ)98%match90¢+11%
DDHQ Race Update (est. 6% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 2,785 (39.7%) • Tram Nguyen (D): 2,535 (36.2%) • John Beccia (D): 593 (8.5%) • Jamie Belsito (D): 584 (8.3%) • • Follow more results here: •
John BecciaDecision Desk (DDHQ)97%match100¢
DDHQ Race Update (est. 6% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 2,785 (39.7%) • Tram Nguyen (D): 2,535 (36.2%) • John Beccia (D): 593 (8.5%) • Jamie Belsito (D): 584 (8.3%) • • Follow more results here: •
Jamie Zahlaway BelsitoDecision Desk (DDHQ)96%match100¢
DDHQ Race Update (est. 6% in): Massachusetts US House 6 Democratic Primary • • Dan Koh (D): 2,785 (39.7%) • Tram Nguyen (D): 2,535 (36.2%) • John Beccia (D): 593 (8.5%) • Jamie Belsito (D): 584 (8.3%) • • Follow more results here: •
Seth MoultonWSJ Reporter93%match100¢
Massachusetts Sen. Ed Markey, who has spent nearly a half-century in Congress, has fended off a Democratic primary challenge from Rep. Seth Moulton @WSJ
Seth Moultoncnn.com97%match100¢
Live results: Massachusetts Sen. Ed Markey will defeat Rep. Seth Moulton in Democratic primary, CNN projects
Seth MoultonReuters95%match100¢
Massachusetts Democratic U.S. Senator Ed Markey Wins Renomination, Withstanding Primary Challenge From U.S. Rep. Seth Moulton - NBC News Projects
Seth MoultonReuters95%match100¢
Massachusetts Democratic U.S. Senator Ed Markey Wins Renomination, Withstanding Primary Challenge From U.S. Rep. Seth Moulton - AP Projects
Seth MoultonReuters95%match100¢
Massachusetts Democratic U.S. Senator Ed Markey Wins Renomination, Withstanding Primary Challenge From U.S. Rep. Seth Moulton - Ddhq Projects
Seth MoultonNBC Reporter97%match100¢
Ed Markey defeats Seth Moulton to win his Democratic primary, @NBCNews projects. • • Markey is 80; Moulton is 47. But Markey played up his progressive credentials and cast doubt on Moulton’s. Markey will likely cruise to reelection in dark blue Massachusetts this fall.

What is this event about?

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 1, 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.