GeoOdds

New Hampshire U.S. Senate Race 2026 — Odds

NH · U.S. Senate · Class 2Lean DOpen seat
Incumbent:Open seat

Jeanne Shaheen's retirement after three terms opened a seat Democrats must defend, with Rep. Chris Pappas the clear frontrunner and former Sen. Scott Brown leading the Republican side. New Hampshire's federal elections have broken Democratic for a decade, and markets put the hold above 80 percent. Ratings remain a notch more cautious at Lean D, leaving room for a spread trade between forecasters and prices.

86%implied chance
0.0pp24h

Favorite: Democrat

Current standings

  1. 1
    Democrat86%
  2. 2
    Republican13%
  3. 3
    Person A
  4. 4
    Person C
  5. 5
    Person E
  6. 6
    Person G
  7. ·
    Others (7 outcomes)<1%

Probability over time — Democrat

Frequently asked questions

Who is favored to win the New Hampshire Senate race in 2026?

Democrat leads on Polymarket at 86%. Forecasters rate the seat Lean D.

Is the New Hampshire senate seat open in 2026?

Yes. Incumbent Jeanne Shaheen (D) is not seeking re-election, making this an open seat. Jeanne Shaheen's retirement after three terms opened a seat Democrats must defend, with Rep. Chris Pappas the clear frontrunner and former Sen. Scott Brown leading the Republican side. New Hampshire's federal elections have broken Democratic for a decade, and markets put the hold above 80 percent. Ratings remain a notch more cautious at Lean D, leaving room for a spread trade between forecasters and prices.

Where can I trade the New Hampshire senate odds?

These markets trade on Polymarket — use the Polymarket link on this page to see the live order book. GeoOdds tracks and charts the probabilities but does not take bets. Trading involves risk; 18+ only.

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