Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 | 65% |
| Match Winner | 63% |
| Game 1 Winner | 59% |
| Game 2 Winner | 57% |
| Any Player Penta Kill | 55% |
| Both Teams Slay Baron Nashor | 53% |
| Any Player Quadra Kill | 53% |
| Both Teams Destroy Inhibitors | 51% |
| Odd/Even Total Kills | 50% |
| Odd/Even Total Kills | 50% |
| Odd/Even Total Kills | 50% |
| First Blood in Game 2? | 50% |
| Total Kills Over/Under 30.5 in Game 1? | 50% |
| Total Kills Over/Under 30.5 in Game 2? | 50% |
| First Blood in Game 1? | 49% |
| O/U 2.5 Games | 48% |
| Both Teams Slay a Dragon | 41% |
| Game Handicap: DK (-1.5) vs KT Rolster (+1.5) | 34% |
| 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% |
| Any Player Penta Kill | 25% |
| Any Player Penta Kill | 25% |
Market context
Dplus KIA vs KT Rolster is priced at **59% for Dplus KIA**, so the market is leaning to DK as the marginal favourite rather than a strong side. That sits close to the current crowd-implied view, but the number is not large enough to ignore KT if the series is expected to be tight; in a best-of-three, that matters because the underdog only needs one swing map to keep the match live.
The historical frame is mixed. Across their longer rivalry, Dplus KIA have the edge overall, with 17 wins from 29 meetings and a 40–34 map lead, yet the recent sample has been less one-sided: the teams split their last six head-to-heads 3–3, and the 12-month map count slightly favours KT at 8–7. Recent series results also matter for read-throughs, with KT having beaten Dplus KIA 2–0 in a 2026 LCK meeting, while DK also have recent wins in the matchup, so the consensus looks more like a narrow DK lean than a dominant edge.
For traders, the main catalysts are confirmation of the match going ahead on schedule and any late LCK scheduling or roster notes before the 9 August settlement window. The market description allows a 50–50 resolution if the match is not played, is tied, or is pushed beyond seven days, so postponement risk is part of the setup rather than just a background detail. On pure price, the contrarian angle is KT if you believe recent form and the tighter recent head-to-head are being underweighted; the consensus, though, remains DK at a modest favourite’s price.
Methodology
We track LoL: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 Legend Group 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
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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: Dplus KIA vs KT Rolster (BO3) - LCK Round 3-4 L… on Who Will Win
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