Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| Both Teams to Score | 100% |
| Both Teams to Score in First Half | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| FC St. Gallen O/U 0.5 | 100% |
| FC St. Gallen O/U 1.5 | 100% |
| Sport Lisboa e Benfica O/U 0.5 | 100% |
| FC St. Gallen 1st Half O/U 0.5 | 100% |
| Sport Lisboa e Benfica 1st Half O/U 0.5 | 100% |
| Both Teams to Score in Second Half | 51% |
| 2nd Half O/U 0.5 | 50% |
| 2nd Half O/U 1.5 | 50% |
| 2nd Half O/U 2.5 | 50% |
| FC St. Gallen 2nd Half O/U 0.5 | 50% |
| FC St. Gallen 2nd Half O/U 1.5 | 50% |
| Sport Lisboa e Benfica 2nd Half O/U 0.5 | 50% |
| Sport Lisboa e Benfica 2nd Half O/U 1.5 | 50% |
| O/U 3.5 | 43% |
| Sport Lisboa e Benfica O/U 1.5 | 34% |
| FC St. Gallen O/U 2.5 | 18% |
| O/U 4.5 | 10% |
| FC St. Gallen (-1.5) | 9% |
| Sport Lisboa e Benfica O/U 2.5 | 7% |
| Sport Lisboa e Benfica (-1.5) | 1% |
| FC St. Gallen (-2.5) | 1% |
| Sport Lisboa e Benfica (-2.5) | 1% |
| O/U 5.5 | 1% |
| 1st Half O/U 2.5 | 0% |
| FC St. Gallen 1st Half O/U 1.5 | 0% |
| Sport Lisboa e Benfica 1st Half O/U 1.5 | 0% |
Market context
FC St. Gallen are due to host Benfica in a UEFA Europa League qualifier, with the market here resolving on whether there are additional match markets beyond the main listing. The crowd-implied **2% YES** sits well below the away-win pricing seen across conventional football books, where Benfica are generally framed as clear favourites and the away side is commonly quoted around 1.4-1.5, implying roughly a two-thirds to three-quarters chance of victory.[1][3][5][11]
That makes the low YES price easiest to read as a tail outcome: it needs the exchange to publish extra live markets or side markets before the settlement window closes, rather than simply following the match result itself. Comparable previews for this fixture have leaned towards Benfica dominance, with several models also flagging goals or both-teams-to-score as plausible, so traders should watch for market-maker behaviour around goals, cards, and correct-score menus if the book expands after line-up news.[6][8][9][13] On-chain, the key practical issue is USDC finality rather than the football scoreline: any late add-ons must appear and settle within the 18:00 UTC window, or the market resolves on what is actually offered in time.
The main catalysts are the exchange’s own market roll-out, official team sheets, and any schedule or venue updates from UEFA or club channels. If Benfica remain strongly favoured in pre-match pricing while BTC and ETH are stable, there is less macro spill-over into this contract; the trade will be driven mostly by whether the platform lists meaningful “more markets” depth before kick-off and how quickly those contracts attract flow.
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 — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
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