The Prediction Markets

2026 midterms · South Dakota

South Dakota 2026 Election Odds

Live Kalshi and Polymarket odds for South Dakota's 2026 races — Senate and governor and 1 House district. Election Day is November 3, 2026.

South Dakota Senate

Safe R

Kalshi

  • Mike Rounds95%
  • Brian Bengs6%

Polymarket

  • Mike Rounds95%
  • Brian Bengs5%
Venue gap 0.3 ptsCompare odds →

South Dakota Governor

Safe R

Kalshi

  • Larry Rhoden97%
  • Dan Ahlers4%

Polymarket

  • Larry Rhoden97%
  • Dan Ahlers2%
Venue gap 0.5 ptsCompare odds →

South Dakota House races

Every South Dakota district with a market on either venue.

South Dakota House races
DistrictRatingGapLink
SD-ALSafe R1.8 ptsOdds →

South Dakota midterms: common questions

Who will win the South Dakota Senate race in 2026?
Mike Rounds (Republican) is favoured to win the South Dakota Senate race, at 95% on Kalshi and 95% on Polymarket.
Who will win the South Dakota governor race in 2026?
Larry Rhoden (Republican) is favoured to win the South Dakota governor race, at 97% on Kalshi and 97% on Polymarket.
Which South Dakota House races are competitive in 2026?
Prediction markets don't rate any South Dakota House district as a toss-up or lean race right now.