TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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KS-04 Republican nominee?
kalshi

KS-04 Republican nominee?

Volume:
$18,085

Ron Estes

 - Kalshi

Ron Estes - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 5, 2026

Closed: Aug 4, 8:41 PM EST

kalshi

Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Ron Estes

View
100%
Yes 100¢No 0¢
100¢
N/A
$9,699
N/A
N/A
$4,890
1mo 4d
Yes
kalshi

Michael Gaynor

0%
Yes 0¢No 100¢
100¢
N/A
$8,386
N/A
N/A
$3,451
1mo 4d
No
kalshi

Frank McCollum

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
1mo 4d
No
Total markets: 3

Intro

This market tracks which candidate will secure the Republican Party nomination for the 2026 Kansas 4th Congressional District House seat. On Kalshi, Ron Estes holds 98.0% probability of winning the nomination, while Michael Gaynor stands at 2.0%. The market resolves according to the official Republican Party nomination outcome for KS-04. Watch for the Republican primary election and nomination process leading up to the November 3, 2026 general election date.

Kalshi

The market resolves to Yes if either Michael Gaynor or Ron Estes wins the Republican Party nomination for the 2026 KS-04 House seat. Each candidate's victory in the primary election triggers a Yes resolution for their respective market.

Frequently asked questions

The KS-04 Republican nominee dashboard on Kalshi tracks real-time odds and historical price movements for the Republican nominee race in Kansas's 4th congressional district. You can monitor the current implied probability of each candidate, view 24-hour trading volume of $643, and observe cumulative group volume of $18,085. The dashboard displays live bid-ask spreads, recent trade history, and probability shifts as new information emerges. This single-venue view lets you follow market sentiment and liquidity for this specific race through Nov 3, 2026.

Prediction market odds on Kalshi often diverge from traditional polling because traders incorporate insider knowledge, fundraising data, and real-time campaign developments that polls may lag. While polls measure voter preference at a snapshot in time, prediction markets reflect the collective financial commitment of participants betting on the actual outcome. For the KS-04 Republican nominee race, comparing market-implied probabilities to recent public polling can reveal whether traders are pricing in information not yet reflected in surveys, or conversely, whether polls suggest different momentum than market prices indicate.

The KS-04 Republican nominee market resolves on Nov 3, 2026. Resolution is determined by the official Republican nominee selected for Kansas's 4th congressional district seat. This may occur through a primary election, convention, or other nomination process recognized by state and national Republican party authorities. Traders should monitor the Kansas Republican Party calendar and any special circumstances that could affect the timing or method of nominee selection. The market will settle once the nominee is officially confirmed.

Key catalysts for the KS-04 Republican nominee market include candidate announcements or withdrawals, primary election results if applicable, endorsements from prominent state or national figures, fundraising reports, debate performances, and local media coverage of candidate viability. Changes in voter registration or turnout expectations, shifts in party establishment support, and unexpected controversies involving candidates can also drive significant price movements. Additionally, broader national political developments affecting Republican primary dynamics may influence trader sentiment about individual Kansas candidates through Nov 3, 2026.