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 |
|---|---|
| Game 1 Winner | 100% |
| Game 2 Winner | 100% |
| Match Winner | 100% |
| Game Handicap: GAL (-1.5) vs Joblife (+1.5) | 100% |
| First Blood in Game 2? | 100% |
| Both Teams Slay a Dragon | 90% |
| Odd/Even Total Kills | 90% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Both Teams Slay Baron Nashor | 10% |
| Both Teams Slay a Dragon | 10% |
| Both Teams Destroy Inhibitors | 10% |
| Odd/Even Total Kills | 10% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| Any Player Quadra Kill | 1% |
| Any Player Penta Kill | 1% |
| First Blood in Game 1? | 1% |
| O/U 2.5 Games | 0% |
Market context
Galions and Joblife are scheduled to face off in the League of Legends French League (LFL) Upper bracket quarterfinal on 13 August at 12:00 PM ET, a best-of-three match that will determine progression toward the playoffs' semi-final stage. The current market pricing at 100% YES reflects either extreme confidence in match completion or minimal liquidity depth; such corner probabilities often indicate sparse order books rather than genuine certainty about outcome. Settlement occurs in USDC upon match conclusion, with the resolution window closing at 00:00 UTC on 13 August—a tight constraint that leaves no margin for scheduling drift.
Historical precedent from LFL fixtures suggests cancellations remain rare but non-zero events, typically triggered by player illness, technical infrastructure failure, or organisational disputes. The 50-50 tie-break clause (covering cancellations, delays beyond seven days, or incomplete matches without a decisive forfeit) has rarely been invoked in regional League play, though it remains material for traders holding positions into the settlement window. Comparable regional playoffs in 2024 saw fixture integrity maintained across 95%+ of scheduled matches, though individual team roster instability occasionally forced last-minute roster swaps rather than outright cancellations.
Traders should monitor LFL official communications and team social media for roster announcements, injury disclosures, or venue changes in the 48 hours preceding the match. Recent regional playoff schedules have held firm, but technical issues at broadcast facilities have occasionally caused same-day delays. The tight settlement window means any delay pushing past midnight UTC on 13 August triggers the 50-50 resolution, creating a specific tail-risk scenario independent of either team's competitive strength.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
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.
UK Frequently Asked Questions
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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.
- 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%.
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