Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
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 PolyGram.
Active sub-markets
| Chelsea FC | 0% YES | 100% NO |
| Draw (Chelsea FC vs. Manchester City FC) | 0% YES | 100% NO |
| Manchester City FC | 100% YES | 0% NO |
Market context
Chelsea face Manchester City in the FA Cup final, with the market still showing 0% YES despite City being the clear football-side favourite in comparable previews and betting lines. That makes the contract look more like a settlement mechanic than a live price discovery trade: any credible route to YES depends entirely on the final result being confirmed before the 14:00 UTC settlement window closes. In previous one-off football event markets, prices have tended to sit near zero when the favourite is dominant and only re-price sharply on confirmed team news, rather than on generic pre-match sentiment.
For traders, the main catalysts are the published line-ups, late injury or suspension news, and any in-play disruption that changes the expected winner before the market closes. Reuters and other pre-match reports have typically focused on City’s squad depth and Chelsea’s recent defensive absences in fixtures between the sides, which matters more here than broad form. On the crypto side, the contract settles in USDC, so liquidity conditions in the stablecoin itself are usually more relevant than BTC or ETH direction, although sharp moves in wider crypto risk can still affect exchange activity and funding rates around event windows. Whale flows matter only if they coincide with late information, because a zero-priced YES market can remain static until a final confirmed result is available.
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 PolyGram, 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.
Trade Chelsea FC vs. Manchester City FC on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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