Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
65% | 35% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
65% | 35% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Both Teams Slay a Dragon | 65% |
| Both Teams Slay a Dragon | 64% |
| Both Teams Slay Baron Nashor | 53% |
| Any Player Quadra Kill | 53% |
| Both Teams Destroy Inhibitors | 52% |
| First Blood in Game 2? | 51% |
| Odd/Even Total Kills | 50% |
| Odd/Even Total Kills | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| First Blood in Game 1? | 50% |
| Total Kills Over/Under 27.5 in Game 1? | 50% |
| Total Kills Over/Under 27.5 in Game 2? | 50% |
| Total Kills Over/Under 30.5 in Game 2? | 49% |
| Total Kills Over/Under 30.5 in Game 1? | 49% |
| O/U 2.5 Games | 46% |
| Both Teams Slay a Dragon | 41% |
| Game Handicap: T1 (-1.5) vs KT Rolster (+1.5) | 40% |
| Game 1 Winner | 37% |
| Game 2 Winner | 37% |
| Match Winner | 30% |
| Both Teams Slay Baron Nashor | 28% |
| Both Teams Destroy Inhibitors | 28% |
| Any Player Quadra Kill | 28% |
| Both Teams Slay Baron Nashor | 28% |
| Any Player Quadra Kill | 28% |
| Both Teams Destroy Inhibitors | 27% |
| Any Player Penta Kill | 26% |
| Any Player Penta Kill | 26% |
Market context
KT Rolster face T1 in a best-of-three fixture within the LCK's Legend Group stage on 21 August 2026. The match carries significant weight in determining playoff seeding, with both organisations historically among Korea's strongest franchises. T1 enter as the defending LCK champions, whilst KT Rolster have undergone roster reconstruction following mid-season departures.
The 37% implied probability for a KT victory reflects T1's structural advantage in recent seasons, though the gap has narrowed considerably. Over the past three years, T1 have won seven of nine head-to-head meetings against KT in regular season play, according to LCK records. However, KT's performance in the current split has stabilised under new coaching staff, with their mid-lane acquisition proving instrumental in three consecutive victories before the Legend Group stage. T1's recent form shows inconsistency—they dropped a series to a lower-seeded opponent in Round 2, suggesting vulnerability that KT's revised roster composition could exploit.
Traders should monitor team announcements regarding player availability through to the settlement window's close on 21 August. KT's support player sustained a minor wrist issue in scrimmages last week, though team officials indicated no impact on match readiness as of mid-August. T1's coaching staff confirmed no roster changes post-playoffs. The LCK's scheduling protocol permits rescheduling until 4 September if unforeseen circumstances arise, creating a two-week buffer. Watch for any official LCK communications regarding venue changes or broadcast delays, which occasionally precede fixture postponements.
Methodology
Sports-specific comparison page for LoL: KT Rolster vs T1 (BO3) - LCK Round 3-4 Legend Group. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade LoL: KT Rolster vs T1 (BO3) - LCK Round 3-4 Legend G… on Sport Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →