The Prediction Markets

Market comparison

Kansas Senate and Governor Combo

2 venues · 4 outcome rows · 4 comparable lines · event identity linked · 0 verified parity · active

4 outcomes · $89K reported volume

Observed 2m ago

Recorded venue end date: Nov 3, 2027

Polymarket

Open venue ↗

5 outcomes · $21K reported volume

Observed 4m ago

Recorded venue end date: Nov 4, 2026

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These venues also report end dates more than 48 hours apart; event identity does not mean the contracts close or settle together. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

Known rule differences between venues

  • Kalshi settles on the party of the officeholder sworn in/inaugurated for the new term; Polymarket settles on the party of the called winner. They differ if the winner dies, withdraws or is not seated before the term starts.
  • Independents: Polymarket assigns a non-affiliated winner by stated caucus (House) or excludes independents from party options (Senate/Governor); Kalshi requires party membership.

A shared identity alone does not make a price difference executable.

D:D

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

20.0%

Bid 18.0% · Ask 20.0%

Cindy Holscher and Adam Hamilton win

Open Kalshi ↗

Polymarket

16.5%

Bid 15.0% · Ask 18.0%

Dems sweep

Open Polymarket ↗

Price difference 3.5 pp

D:R

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

4.0%

Bid 2.0% · Ask 4.0%

Cindy Holscher and Roger Marshall win

Open Kalshi ↗

Polymarket

2.5%

Bid 1.5% · Ask 3.4%

Dems win Gov, Reps win Senate

Open Polymarket ↗

Price difference 1.6 pp

R:D

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

24.0%

Bid 23.0% · Ask 25.0%

Ty Masterson and Adam Hamilton win

Open Kalshi ↗

Polymarket

23.6%

Bid 22.2% · Ask 25.0%

Reps win Gov, Dems win Senate

Open Polymarket ↗

Price difference 0.4 pp

R:R

Partial parity

Payoffs match in ordinary outcomes; see the rule differences above.

Kalshi

58.0%

Bid 57.0% · Ask 59.0%

Ty Masterson and Roger Marshall win

Open Kalshi ↗

Polymarket

57.5%

Bid 56.0% · Ask 59.0%

Reps sweep

Open Polymarket ↗

Price difference 0.5 pp

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.