South Dakota Senate 2026
The chance this seat goes Republican in November, across every listed contract, as a 0–100 chance the Republican wins.
SEAT PMI · 0–100 · CHANCE REPUBLICANS WIN
97.3
DEMOCRATEVENREPUBLICAN
Republicans win
97.3enters as 97.3
Democrats win
2.7enters as 100 − 2.7 = 97.3
Both legs are aggregated. The Democratic leg is converted as 100 − p, so this seat reads on the same scale as every other.
Control of the Senate
Does South Dakota decide the Senate?
No. It is rated Safe R, outside the 7 contested seats.
Control turns on the 7 contested seats. The seat that tips control is Texas at 34.2.
Contracts behind this reading · 6 of 11
Sorted by weight
Will Republicans win the Senate race in South Dakota? - Mike Rounds95.1Will the Republicans win the South Dakota Senate race in 2026?95.2South Dakota Senate General Election — Julian Beaudion6.0South Dakota Senate General Election — Mike Rounds93.0Will the Democrats win the South Dakota Senate race in 2026?0.1Will Democratics win the Senate race in South Dakota? - Julian Beaudion0.5
Show all 11 contracts
South Dakota US Senate Winner - Brian Bengs8.0South Dakota US Senate Winner - Julian Beaudion7.0South Dakota US Senate Winner - Mike Rounds97.0Will Mike Rounds win the South Dakota general election for US Senate in 2026?93.0Which party will win the 2026 US Senate election in South Dakota? - Democratic2.0
See every contract behind this seat
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Sign in free with GoogleWeights are 24h liquidity share · reconciled reading 97.3 · rows open on the exchange
Other South Dakota races this cycle