Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
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 BTC Prediction.
Active sub-markets
| Shenna Bellows | 0% YES | 100% NO |
| Troy Jackson | 0% YES | 100% NO |
| Kenneth Pinet | 0% YES | 100% NO |
| Nirav Shah | 0% YES | 100% NO |
| Candidate A | 0% YES | 100% NO |
| Candidate C | 0% YES | 100% NO |
Market context
The Maine Democratic primary for governor has already been held, and the party’s first official results point to Hannah Pingree as the nominee after ranked-choice tabulation. Maine’s primary system matters here because the winner is not always the first-choice leader on election night; if no candidate clears an outright majority, subsequent rounds can reshape the result, which is exactly the sort of dynamic this contract is designed to capture.[1][2]
That context helps explain why a market printing **0% YES** after the June 9 vote should be read as a stale or mispriced on-chain state rather than a live race judgement. On prediction markets settled in USDC, the final arbiter is the official result, so once the Maine Democratic Party’s announcement and any credible reporting converge, the contract should resolve accordingly; by contrast, if the event failed to take place, the market would settle to Other under the contract rules.[2][5]
For traders, the main catalysts are procedural rather than political: the party’s certification timeline, any ranked-choice tabulation updates, and whether the result is widely reported without dispute. The state’s elections office lists primary-qualified candidates for the November ballot, underscoring that the June contest is the binding nomination step, while the broader 2026 gubernatorial environment remains one of several open-seat state races nationally.[2][3] With no obvious crypto-specific driver tied to this event, BTC and ETH price action only matters insofar as it affects overall risk appetite, funding, and flows into USD-linked settlement venues.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- Where can I trade this market with the lowest fees?
- On BTC 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?
- BTC 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 BTC Prediction?
- Zero. BTC 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.
Trade Maine Governor Democratic Primary Winner on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
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