Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Game 2 Winner | 100% |
| O/U 2.5 Games | 100% |
| Odd/Even Total Kills | 100% |
| Both Teams Slay a Dragon | 100% |
| Odd/Even Total Kills | 100% |
| Both Teams Slay a Dragon | 90% |
| Both Teams Slay Baron Nashor | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Odd/Even Total Kills | 10% |
| Both Teams Slay Baron Nashor | 1% |
| Both Teams Slay a Dragon | 1% |
| Both Teams Destroy Inhibitors | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Both Teams Slay Baron Nashor | 1% |
| Both Teams Destroy Inhibitors | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Game 1 Winner | 0% |
| Match Winner | 0% |
| Game Handicap: T1.A (-1.5) vs KT Rolster Challengers (+1.5) | 0% |
Market context
KT Rolster Challengers face T1 Academy in a best-of-three fixture within the LCK Challengers League's Rounds 3-4 Challenge Group bracket, scheduled for 19 August 2026 at 01:00 ET. The 0% implied probability reflects either extreme confidence in T1 Academy's superiority or minimal trading activity on this particular matchup. Given the settlement window closes at 11:00 ET on the scheduled date, there is a narrow window for market movement before resolution.
Academy-level League of Legends competition in South Korea typically features rosters composed of prospects, substitutes, and players in development from the main LCK organisations. T1 Academy carries institutional weight—T1's main roster has dominated regional and international competition for over a decade—though academy squads do not automatically inherit that performance level. KT Rolster's academy side operates within a franchise with established infrastructure but recent main-roster inconsistency. Historical precedent suggests academy matches remain volatile; upsets occur when the "challenger" designation proves literal rather than nominal, particularly in early-season rounds where meta adaptation and roster cohesion remain unsettled.
Traders should monitor whether either team announces roster changes, substitutions, or coaching adjustments in the 48 hours before play. Schedule confirmation from the LCK Challengers League official channels matters; any postponement beyond 19 September would trigger the 50-50 resolution clause. Recent performance data from Rounds 1-2 will surface as the match approaches, offering concrete evidence of form. Injury reports or player availability statements from either organisation could shift the probability distribution significantly if disclosed close to fixture time.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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 Challengers vs T1 Academy (BO3) - LC… on Prediction Today
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