Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
96% | 4% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 96% |
| Arsenal FC O/U 0.5 | 94% |
| O/U 1.5 | 83% |
| 2nd Half O/U 0.5 | 82% |
| 1st Half O/U 0.5 | 76% |
| Arsenal FC 2nd Half O/U 0.5 | 76% |
| Arsenal FC O/U 1.5 | 74% |
| Arsenal FC 1st Half O/U 0.5 | 68% |
| O/U 2.5 | 62% |
| Arsenal FC (-1.5) | 60% |
| 2nd Half O/U 1.5 | 53% |
| Arsenal FC O/U 2.5 | 48% |
| Coventry City FC O/U 0.5 | 43% |
| Arsenal FC 2nd Half O/U 1.5 | 43% |
| 1st Half O/U 1.5 | 41% |
| Both Teams to Score | 40% |
| O/U 3.5 | 38% |
| Arsenal FC (-2.5) | 36% |
| Arsenal FC 1st Half O/U 1.5 | 34% |
| Coventry City FC 2nd Half O/U 0.5 | 28% |
| 2nd Half O/U 2.5 | 27% |
| Coventry City FC 2nd Half O/U 1.5 | 25% |
| Both Teams to Score in Second Half | 22% |
| O/U 4.5 | 21% |
| Coventry City FC 1st Half O/U 0.5 | 21% |
| 1st Half O/U 2.5 | 17% |
| Both Teams to Score in First Half | 14% |
| Coventry City FC O/U 1.5 | 12% |
| O/U 5.5 | 10% |
| Coventry City FC O/U 2.5 | 2% |
| Coventry City FC 1st Half O/U 1.5 | 2% |
| Coventry City FC (-1.5) | 1% |
| Coventry City FC (-2.5) | 0% |
Market context
Arsenal travel to Coventry City on 21 August for the opening fixture of the 2024–25 Premier League season. The conditional token market on Polymarket currently prices this matchup at 60% probability for "more markets," reflecting trader conviction that additional betting contracts will be created around this fixture. Settlement occurs at 19:00 UTC on match day, giving traders roughly five hours post-kickoff to assess whether supplementary markets have been listed. The USDC-denominated contract trades on Polygon, with conditional token mechanics allowing positions to resolve based on whether new derivative markets materialise rather than the underlying result.
Historical precedent suggests major opening-weekend fixtures attract expanded market offerings. When Polymarket listed markets around Arsenal's season opener last year, secondary contracts covering first-goal scorer, exact scoreline, and player performance metrics appeared within hours of the primary match outcome becoming known. Coventry's recent promotion to the Premier League adds narrative weight—their first top-flight campaign since 2001 generates broader media coverage and retail trader interest, typically correlating with deeper market fragmentation and more granular betting options.
Traders should monitor Polymarket's official announcements and the platform's market creation dashboard through 21 August. Fixture postponements or scheduling changes would alter the settlement window, though the Premier League fixture list remains stable. Arsenal's squad composition and any late injury bulletins may influence broader market activity; significant absences could dampen retail engagement and reduce the likelihood of supplementary markets materialising.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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 does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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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