Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
66% | 34% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
66% | 34% | 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 |
|---|---|
| Both Teams Slay a Dragon | 66% |
| Both Teams Slay a Dragon | 66% |
| Game 2 Winner | 53% |
| Game 1 Winner | 52% |
| Any Player Quadra Kill | 52% |
| Match Winner | 51% |
| Both Teams Slay Baron Nashor | 51% |
| Any Player Penta Kill | 51% |
| Odd/Even Total Kills | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Odd/Even Total Kills | 50% |
| O/U 2.5 Games | 49% |
| Both Teams Slay a Dragon | 44% |
| Both Teams Slay Baron Nashor | 28% |
| Both Teams Destroy Inhibitors | 28% |
| Any Player Quadra Kill | 28% |
| Both Teams Slay Baron Nashor | 28% |
| Both Teams Destroy Inhibitors | 28% |
| Any Player Quadra Kill | 28% |
| Game Handicap: KT.C (-1.5) vs Dplus KIA Challengers (+1.5) | 27% |
| Any Player Penta Kill | 26% |
| Any Player Penta Kill | 26% |
| Game Handicap: DK.C (-1.5) vs KT Rolster Challengers (+1.5) | 25% |
Market context
Market consensus: 66% chance of lol: kt rolster challengers vs dplus kia challengers (bo3) - lck challengers league rounds 3-4 challenge group. Prediction markets aggregate real capital to produce this probability signal. This market refers to the LoL match between KT Rolster Challengers and Dplus KIA Challengers in the LCK Challengers League Rounds 3-4 Challenge Group, initially scheduled for July …
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 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.
Trade LoL: KT Rolster Challengers vs Dplus KIA Challengers… on BTC Prediction
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