Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
67% | 33% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
67% | 33% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Both Teams Slay a Dragon | 67% |
| Odd/Even Total Kills | 50% |
| Match Winner | 35% |
| Both Teams Slay Baron Nashor | 28% |
| Both Teams Destroy Inhibitors | 28% |
| Any Player Quadra Kill | 27% |
| Any Player Penta Kill | 25% |
Market context
KT Rolster face Gen.G in a best-of-one KeSPA Cup group-stage match, and the contract’s 45% YES implies the market is leaning slightly towards KT but is still very much pricing a near coin-flip. That sits close to the only sportsbook-style reference in the search results, where Strafe lists the match at 50%, suggesting little divergence between broader match pricing and the prediction-market line.[2]
For historical context, this is the sort of fixture where one-game variance matters more than team reputation: a BO1 gives weaker seeds more upset potential than a series, so pre-match probabilities usually sit closer together than they would for a BO3 or BO5. Bo3.gg’s preview-style listing also frames the contest as a straight 1-0 or 0-1 outcome, reinforcing that the market should be read as a single-map contest rather than a long-series quality test.[1]
The main catalysts for traders are straightforward: line-ups, any last-minute schedule change, and whether the match actually starts and finishes before the settlement window closes. Because the market resolves to 50-50 if the game is cancelled, tied, or delayed beyond seven days, the biggest non-performance risk is operational rather than competitive. Any late roster announcement or broadcast update that affects whether KT or Gen.G field their expected starters would matter more here than in a longer series, where one map has less leverage over the final result.
Methodology
We track LoL: KT Rolster vs Gen.G (BO1) - KeSPA Cup Group Stage across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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.
Trade LoL: KT Rolster vs Gen.G (BO1) - KeSPA Cup Group Stage on Best Prediction Markets UK
Live order book, 0% fees, USDC settlement in seconds.
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