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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Elections
SC-01 Republican nominee?
kalshi

SC-01 Republican nominee?

Volume:
$221,117

Jenny Costa Honeycutt

 - Kalshi

Jenny Costa Honeycutt - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 24, 2026

Closed: Jun 23, 9:45 PM EST

kalshi

Kalshi

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

Jenny Costa Honeycutt

View
100%
Yes 100¢No 0¢
100¢
N/A
$64,468
N/A
N/A
$34,589
1mo 4d
Yes
kalshi

Mark Smith

0%
Yes 0¢No 100¢
100¢
N/A
$75,345
N/A
N/A
$37,441
1mo 4d
No
kalshi

Justin Myers

0%
Yes 0¢No 100¢
100¢
N/A
$34,395
N/A
N/A
$12,347
1mo 4d
No
kalshi

Alex Pelbath

0%
Yes 0¢No 100¢
100¢
N/A
$19,333
N/A
N/A
$10,196
1mo 4d
No
kalshi

Sam McCown

0%
Yes 0¢No 100¢
100¢
N/A
$16,807
N/A
N/A
$13,512
1mo 4d
No
kalshi

Mark Sanford

0%
Yes 0¢No 100¢
100¢
N/A
$5,043
N/A
N/A
$3,008
1mo 4d
No
kalshi

Jay Byars

0%
Yes 0¢No 100¢
100¢
N/A
$3,796
N/A
N/A
$3,058
1mo 4d
No
kalshi

Logan Cunningham

0%
Yes 0¢No 100¢
100¢
N/A
$1,932
N/A
N/A
$1,874
1mo 4d
No
Total markets: 8

Intro

This market tracks whether Mark Smith will secure the Republican Party nomination to run for the 2026 South Carolina 1st Congressional District House seat. On Kalshi, Mark Smith holds 87.0% probability as the leading contender, while Jenny Costa Honeycutt stands at 8.9%. The market resolves based on the official Republican Party nomination outcome for SC-01. Watch the Republican primary election scheduled for June 16, 2026, which will determine the party's nominee.

Kalshi

If Mark Smith wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Jay Byars wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Mark Sanford wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Logan Cunningham wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Jenny Costa Honeycutt wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Sam McCown wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Justin Myers wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes. If Alex Pelbath wins the nomination for the Republican Party to contest the 2026 SC-01 House seat, then the market resolves to Yes.

Frequently asked questions

Prediction market odds on Kalshi often diverge from traditional polling because traders incorporate real-time campaign news, fundraising data, and endorsement momentum that polls may lag in capturing. While polls provide snapshots of voter preference at a single moment, prediction markets aggregate continuous information from active participants with financial incentives to forecast accurately. For SC-01, comparing Kalshi odds to recent polls reveals whether the market is pricing in factors—such as candidate viability or ground organization—that surveys haven't yet fully reflected. This gap can signal emerging shifts in the race.

The SC-01 Republican nominee market resolves on Nov 3, 2026. Resolution is determined by the official outcome of the Republican primary election or nomination process in South Carolina's 1st Congressional District. The market will settle once the Republican nominee is officially declared by state election authorities or the party. Traders should monitor campaign calendars, primary dates, and any changes to the nomination process that could affect the final resolution date or criteria.

Key catalysts for SC-01 Republican nominee odds include candidate endorsements from prominent state or national figures, major fundraising announcements, debate performances, and shifts in local media coverage. Primary election results from neighboring states or early contests can reshape expectations about viability and momentum. Campaign controversies, candidate withdrawals, or unexpected entries into the race will trigger sharp repricing. Polling releases specific to SC-01 and changes in voter registration or turnout models also drive market movement. Traders should track both official campaign announcements and grassroots organizing signals that reflect ground-level support.