The Prediction Markets

FL-19 Republican Primary Winner

FinalKickoff
Traded
$25K
Venues
Polymarket
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This market has closed

Trading ended on Aug 18, 2026. The prices below are the last ones before it closed and no longer update. Browse open markets

Odds by venue

Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 126 days ago. Ages are as of when this page was built.

  • Polymarket
Catalina Lauf
53%
Polymarket 55.5%(53% fair)polled, 3030 h agoBest Yes 58¢ on Polymarket, $100 pays $172 (1.72x)
Polymarket
Contract
Catalina Lauf
Last price
55.5%
Fair, margin removed
53%
As of
Polled 126 d ago
Buy Yes
58¢
Sell Yes
53¢
$100 on Yes pays
$172 (1.72x)
Volume
$18K
Trade this on Polymarket
Jim Schwartzel
22.3%
Polymarket 23.4%(22.3% fair)polled, 3030 h agoBest Yes 30.7¢ on Polymarket, $100 pays $326 (3.26x)
Polymarket
Contract
Jim Schwartzel
Last price
23.4%
Fair, margin removed
22.3%
As of
Polled 126 d ago
Buy Yes
30.7¢
Sell Yes
16¢
$100 on Yes pays
$326 (3.26x)
Volume
$1K
Trade this on Polymarket
Jim Oberweis
12%
Polymarket 12.6%(12% fair)polled, 3030 h agoBest Yes 23.6¢ on Polymarket, $100 pays $424 (4.24x)
Polymarket
Contract
Jim Oberweis
Last price
12.6%
Fair, margin removed
12%
As of
Polled 126 d ago
Buy Yes
23.6¢
Sell Yes
1.5¢
$100 on Yes pays
$424 (4.24x)
Volume
$3K
Trade this on Polymarket
Bob Rommel
7.3%
Polymarket 7.7%polled, 3030 h agoBest Yes 14.3¢ on Polymarket, $100 pays $699 (6.99x)
Polymarket
Contract
Bob Rommel
Last price
7.7%
As of
Polled 126 d ago
Buy Yes
14.3¢
Sell Yes
1.1¢
$100 on Yes pays
$699 (6.99x)
Volume
$1K
Trade this on Polymarket
Madison Cawthorn
3.2%
Polymarket 3.4%polled, 3030 h agoBest Yes 5¢ on Polymarket, $100 pays $2,000 (20.0x)
Polymarket
Contract
Madison Cawthorn
Last price
3.4%
As of
Polled 126 d ago
Buy Yes
5¢
Sell Yes
1.7¢
$100 on Yes pays
$2,000 (20.0x)
Volume
$2K
Trade this on Polymarket
Spencer Roach
2.2%
Polymarket 2.3%polled, 3030 h agoBest Yes 4¢ on Polymarket, $100 pays $2,500 (25.0x)
Polymarket
Contract
Spencer Roach
Last price
2.3%
As of
Polled 126 d ago
Buy Yes
4¢
Sell Yes
0.6¢
$100 on Yes pays
$2,500 (25.0x)
Volume
$871
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Catalina Lauf
  • Jim Schwartzel
  • Jim Oberweis

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Polymarket

Open on Polymarket ↗

Top of book

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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

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Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.04 × price × (1 − price) per share (politics rate). Fee calculator. Estimates only, not advice.

About this market

Final prediction market prices for "FL-19 Republican Primary Winner". Catalina Lauf last traded at 53%. Next is Jim Schwartzel at 22.3%. $25K has traded across 6 outcomes on Polymarket. The market closed on Aug 18, 2026.

This market will resolve according to the candidate who wins the nomination for the Republican Party to contest the FL-19 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The Republican primary will take place on August 18, 2026. If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other". The resolution source for this market will be a consensus of official Republican sources, including https://www.rnc.org/. Any replacement of the nominee before election day will not change the resolution of the market.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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