NY-12 Democratic Primary Winner

Platform comparison

Active sub-markets

Market context

The real-world event is the Democratic primary for New York’s 12th Congressional District seat, held on 23 June 2026, to determine who will contest the 2026 midterm election. Five candidates are officially running: Alex Bores, George Conway, Micah Lasher, Jack Schlossberg, and Layla Law-Gisiko, with the nomination decided by party voters before the general election in November. The market currently assigns a 1% implied probability to any single candidate winning, reflecting the crowded field and lack of a clear frontrunner.

Historically, similar multi-candidate primaries in New York urban districts have produced low individual win probabilities until late-stage endorsements or fundraising surges shift the odds. In the 2024 NY-13 primary, no candidate exceeded 15% implied probability until two weeks before voting, when a union endorsement consolidated support. This pattern suggests that the current 1% figure is not an outlier but a baseline for early-stage uncertainty. Platforms diverge here: Polymarket displays decimal odds (e.g., 100.00 for 1%), while Kalshi and Betfair show implied probabilities directly, and fee structures vary from 2% on Smarkets to 0% on some Kalshi sub-markets, affecting trader returns.

Traders should monitor candidate announcements, fundraising totals, and local party endorsements, particularly from the New York County Democratic Committee. A recent New York Times poll shows no candidate leading by more than 3 points, with Schlossberg and Lasher slightly ahead but not dominant [4]. The settlement window ends 23 June 2026, but if no nominee is announced by 3 November 2026, the market resolves to “Other”. KYC requirements differ: Kalshi mandates full identity verification, while Polymarket allows wallet-only access, influencing which traders can participate. These structural differences shape liquidity and price efficiency across platforms.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares NY-12 Democratic Primary Winner specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Alternative, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does it cost to trade on Polymarket Alternative?

Zero. Polymarket Alternative routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.