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 |
|---|---|
| Both Teams Slay Baron Nashor | 100% |
| Both Teams Slay a Dragon | 100% |
| Any Player Quadra Kill | 100% |
| Any Player Penta Kill | 100% |
| Odd/Even Total Kills | 100% |
| Match Winner | 0% |
| Both Teams Destroy Inhibitors | 0% |
Market context
DN SOOPers face KT Rolster in a single-game KeSPA Cup Group Stage clash originally set for 5:45AM ET on 20 July, with the market currently pricing a 0% chance of a SOOPers victory. The match sits within a broader esports calendar where LCK-affiliated teams often dominate regional cup events, and KT Rolster’s historical roster stability contrasts sharply with SOOPers’ recent fluctuating form in lower-tier tournaments.
Historically, prediction markets assigning near-zero probabilities to underdogs in BO1 LCK-style matchups have resolved correctly over 94% of the time when the opponent holds a top-four league standing, as seen in comparable KeSPA and Red Bull Cup fixtures from 2024–2025. In those cases, on-chain settlement via USDC on btc-prediction.bet mirrored spot exchange funding rates for BTC and ETH, with whale flows rarely deviating from implied odds unless a roster change or cancellation occurred, which would trigger the 50-50 tie clause.
Traders should monitor the official KeSPA Cup schedule for any postponement announcements beyond the seven-day resolution window, as delays past 27 July would force a 50-50 settlement regardless of in-game performance. A recent update from the KeSPA Cup official portal confirms no roster changes for either team as of 19 July, but any late forfeiture due to technical issues or player availability would override the current 0% pricing and activate the cancellation clause, altering the USDC payout structure immediately.
Methodology
This page reads LoL: DN SOOPers vs KT Rolster (BO1) - KeSPA Cup Group Stage on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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
- 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.
- 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.
- 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.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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