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 |
|---|---|
| Once Caldas (-1.5) | 100% |
| Once Caldas (-2.5) | 100% |
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| O/U 4.5 | 100% |
| O/U 5.5 | 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% |
| 1st Half O/U 2.5 | 100% |
| Once Caldas O/U 1.5 | 100% |
| Once Caldas O/U 2.5 | 100% |
| Cúcuta Deportivo FC O/U 0.5 | 100% |
| Once Caldas 1st Half O/U 0.5 | 100% |
| Once Caldas 1st Half O/U 1.5 | 100% |
| Cúcuta Deportivo FC 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 1.5 | 100% |
| Once Caldas 2nd Half O/U 0.5 | 100% |
| Once Caldas 2nd Half O/U 1.5 | 100% |
| Once Caldas O/U 0.5 | 99% |
| 2nd Half O/U 0.5 | 99% |
| Cúcuta Deportivo FC O/U 1.5 | 1% |
| Cúcuta Deportivo FC O/U 2.5 | 1% |
| Cúcuta Deportivo FC 1st Half O/U 1.5 | 1% |
| Both Teams to Score in Second Half | 1% |
| 2nd Half O/U 2.5 | 1% |
| Cúcuta Deportivo FC 2nd Half O/U 0.5 | 1% |
| Cúcuta Deportivo FC 2nd Half O/U 1.5 | 1% |
| Cúcuta Deportivo FC (-1.5) | 0% |
| Cúcuta Deportivo FC (-2.5) | 0% |
Market context
Once Caldas face Cúcuta Deportivo in a Colombia Primera A match scheduled for 27 July at 01:15 UTC, and the market’s 100% YES implies the contract is treating the more-markets slate as effectively certain to settle from the fixture. Public previews for the game lean towards a low-scoring home edge: several model-based or tipster pages favour Once Caldas, with common angles including home win, under 2.5 goals, and both teams not to score[1][2][5][6]. The last cited head-to-head result also went Once Caldas’ way, a 2-1 away win in January 2026, which is the kind of recent comparable that typically supports a narrower, outcome-driven view rather than a broad scoring expectation[8].
For traders, the key watchpoints are straightforward: the market can only resolve once the scheduled match and any linked “more markets” outcomes are officially settled, so any postponement, venue change, or data-feed issue would matter more than pre-match opinion. In crypto terms, USDC settlement means the contract’s finality depends on the on-chain oracle and market closing mechanics, while the broader BTC/ETH tape is only indirectly relevant unless it shifts risk appetite across prediction markets. If the event list expands or the fixture timing changes close to kick-off, that is the main dependency to monitor; absent that, the crowd price is already at the ceiling, leaving little room for incremental repricing before settlement.
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.
- 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 does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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