Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Scam? Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Scam? → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Scam? → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Scam? → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Scam? → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Scam? → |
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 Polymarket Scam?.
Active sub-markets
| Spread -1.5 | 100% Miami Marlins | 0% San Francisco Giants |
| O/U 7.5 | 100% Over | 0% Under |
| 1st 5 Innings Spread -1.5 | 0% San Francisco Giants | 100% Miami Marlins |
| 1st 5 Innings Spread -1.5 | 100% Miami Marlins | 0% San Francisco Giants |
| 1st 5 Innings Spread -2.5 | 0% San Francisco Giants | 100% Miami Marlins |
| 1st 5 Innings Spread -2.5 | 100% Miami Marlins | 0% San Francisco Giants |
Market context
Polymarket is pricing the **Giants** at about **69%** to beat the **Marlins**, with YES/NO exposure settled in **USDC** on **Polygon** through conditional tokens that resolve off the official final result. That is a clear favourite, but not a lock: the market is still leaving meaningful room for late line-up, pitching, or weather-driven repricing before the game is completed.
That probability sits a touch above the prevailing bookmaker market, where the Marlins were around **-138 to -143** and the Giants around **+119 to +120** on the moneyline, implying a closer contest than Polymarket’s current quote.[1][2][3] For context, the Giants were listed by USATODAY SportsData as **4-8** entering the game, while ESPN’s live game page confirms the matchup and keeps the betting context current.[5][6] In practical terms, a 69% Polymarket price usually signals stronger crowd conviction than the headline moneyline alone, but it still leaves scope for a sharper move if the pre-game edge narrows.
The main catalysts for a trader are straightforward: confirmed **starting pitchers**, final **line-ups**, and any **postponement** risk, because this contract stays open if the game is delayed and only falls to a **50-50** settlement if the game is cancelled or ends in a tie. The listed total was around **8 runs**, suggesting the crowd and books were expecting an ordinary scoring environment rather than a blowout profile.[1][3] Any late change to the scheduled first pitch, rotation order, or weather can matter more here than the broad team records, because the contract resolves strictly on the completed game result.
Methodology
We track San Francisco Giants vs. Miami Marlins 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
- Is this market available outside the US?
- Polymarket Scam? 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 Polymarket Scam??
- Zero. Polymarket Scam? 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.
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