TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 8:00 AM EST
Kalshi
This market tracks whether Mark Lamb will secure the Republican Party's nomination for the 2026 Arizona House race in District 5. On Kalshi, the probability stands at 59.0%. The market will resolve based on official nomination results from the Republican Party for the AZ-5 seat. Watch for developments leading up to the August 2026 nomination deadline, when Arizona Republicans will formally select their general election candidate.
If Travis Grantham wins the nomination for the Republican Party to contest the 2026 AZ-5 House seat, then the market resolves to Yes. If Mark Lamb wins the nomination for the Republican Party to contest the 2026 AZ-5 House seat, then the market resolves to Yes. If Jay Feely wins the nomination for the Republican Party to contest the 2026 AZ-5 House seat, then the market resolves to Yes. If Daniel Keenan wins the nomination for the Republican Party to contest the 2026 AZ-5 House seat, then the market resolves to Yes.
Prediction market odds on Kalshi often diverge from traditional polling because traders incorporate non-public information, insider knowledge, and real-time campaign developments. While polls measure voter preference at a single moment, prediction markets aggregate continuous bets from participants with financial incentive to forecast accurately. For the AZ-05 Republican race, market odds reflect expectations about candidate viability, fundraising momentum, and endorsement patterns that may not yet appear in surveys. Comparing the two reveals whether the market is pricing in dynamics that public polls have not yet captured.
The AZ-05 Republican nominee market is scheduled to resolve on Aug 31, 2026. Resolution occurs once the Republican Party officially designates or confirms its nominee for Arizona's 5th congressional district seat. This typically follows the primary election process and any subsequent party conventions or candidate selection procedures. The market will settle based on the officially recognized Republican nominee at that time, ensuring clarity and finality for all traders holding positions through the end date.
Key catalysts for AZ-05 Republican nominee odds include candidate announcements or withdrawals, primary election results, major endorsements from party leaders or national figures, and shifts in fundraising totals. Campaign controversies, debate performances, or media coverage can rapidly reshape trader expectations. Local Arizona political developments, demographic shifts in the district, or changes to the primary calendar may also influence market pricing. Additionally, national Republican Party dynamics and primary outcomes in neighboring states often signal momentum that traders apply to the AZ-05 race, driving volatility in implied probabilities through August 2026.