Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi Alternative UK Pick polygram.ink |
1% | 99% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi Alternative UK → |
Polymarket polymarket.com |
1% | 99% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi Alternative UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi Alternative UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi Alternative UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi Alternative UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Kalshi Alternative UK.
Active sub-markets
| Jack Schlossberg | 1% YES | 100% NO |
| Alex Bores | 30% YES | 71% NO |
| Erik Bottcher | 0% YES | 100% NO |
| Carolyn Maloney | 0% YES | 100% NO |
| Andrew Cuomo | 0% YES | 100% NO |
| Brad Hoylman-Sigal | 0% YES | 100% NO |
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 general election. Five candidates—Alex Bores, George Conway, Micah Lasher, Jack Schlossberg, and Layla Law-Gisiko—are vying for the nomination, with the current crowd-implied probability of any single candidate winning sitting at just 1% YES, reflecting a highly fragmented field and uncertain outcome[1][7].
Historically, similar multi-candidate primaries in New York House districts have produced low individual win probabilities until late-stage announcements or endorsements shift momentum; for instance, the 2022 NY-13 primary saw win odds for top contenders remain below 5% until a major union endorsement two weeks before voting[3]. This pattern suggests the current 1% figure is not anomalous but typical for early-stage, open contests where no clear frontrunner has emerged. Traders should monitor candidate fundraising totals via FEC data, as surges often precede media attention[4], and watch for endorsements from key Democratic groups like the NYC Board of Elections, which could alter implied probabilities rapidly[5].
Market platforms diverge significantly on this contest: Polymarket displays decimal odds (e.g., 100.00 for 1%), while Kalshi and Betfair use implied probabilities (1%), affecting how traders interpret risk. Fee structures also vary—Polymarket charges 0% maker fees but 2% taker fees, whereas Kalshi imposes a 0.5% transaction fee with stricter KYC requirements, limiting access for some users[6]. Smarkets offers lower fees (1%) but requires full identity verification, creating a trade-off between cost and accessibility. These differences mean the same 1% probability may carry distinct risk profiles depending on the platform used.
Methodology
We read NY-12 Democratic Primary Winner from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Kalshi Alternative UK routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.
FAQ
- Where can I trade this market with the lowest fees?
- On Kalshi Alternative UK, 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'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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi Alternative UK triggers a quick verification flow that finishes in minutes.
Trade NY-12 Democratic Primary Winner on Kalshi Alternative UK
Live order book, 0% fees, USDC settlement in seconds.
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