NY-12 Democratic Primary Winner

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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 the nominee for the 2026 midterms. With the current crowd-implied probability at just 1% YES for the market titled “NY-12 Democratic Primary Winner,” the market is pricing in a near-certain outcome where no single candidate dominates or where the nomination remains contested until late. Historically, such low probabilities in congressional primaries often mirror cases where multiple high-profile contenders split the vote, as seen in New York’s 2018 and 2020 primaries for open seats, where no candidate secured over 40% in the initial round, leading to delayed nominations or “Other” resolutions. In those instances, the presence of well-funded outsiders like Jack Schlossberg and George Conway alongside incumbents like Micah Lasher created a fragmented field, reducing the likelihood of a clear winner emerging early [2][3].

Traders should watch for key catalysts: candidate announcements of withdrawal, shifts in campaign finance data, and endorsements from major Democratic figures, which could consolidate support around one nominee. The NYC Board of Elections lists Layla Law-Gisiko and others as tentative candidates, suggesting the field may still expand or contract before the primary [5]. Recent polling from The New York Times shows Republicans entering the midterms with a 217–212 House majority, increasing pressure on Democrats to unify quickly, yet the primary’s timing on 23 June leaves little room for late consolidation if the vote remains split [4]. A beat-reporter source from Ballotpedia notes that Schlossberg’s campaign has gained traction in early fundraising, but Lasher’s incumbency remains a strong anchor, creating a dependency on whether either can break the 50% threshold before November 3 [2]. If no nominee is announced by that date, the market resolves to “Other,” making the next few weeks critical for assessing vote concentration.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track NY-12 Democratic Primary Winner on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Sport Prediction, 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.

Is this market available outside the US?

Sport Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does it cost to trade on Sport Prediction?

Zero. Sport Prediction 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.