Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
60% | 40% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
60% | 40% | 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 |
|---|---|
| Total Kills Over/Under 27.5 in Game 1? | 60% |
| Total Kills Over/Under 27.5 in Game 2? | 59% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Odd/Even Total Kills | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Slay a Dragon | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Odd/Even Total Kills | 50% |
| 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% |
| O/U 2.5 Games | 49% |
| First Blood in Game 1? | 49% |
| First Blood in Game 2? | 49% |
| Total Kills Over/Under 30.5 in Game 1? | 47% |
| Total Kills Over/Under 30.5 in Game 2? | 47% |
| Game 1 Winner | 45% |
| Game 2 Winner | 45% |
| Match Winner | 44% |
| Game Handicap: VIT (-1.5) vs GIANTX (+1.5) | 31% |
| Any Player Quadra Kill | 26% |
| Any Player Penta Kill | 8% |
| Any Player Penta Kill | 8% |
Market context
GIANTX and Team Vitality are scheduled to contest a best-of-three League of Legends match in the LEC Regular Season on 14 August 2026 at 13:15 ET. The market currently reflects 45% implied probability for a GIANTX victory, suggesting moderate confidence in Vitality as favourites. Settlement occurs in USDC upon match completion, with the contract resolving 50-50 only if the fixture is cancelled, delayed beyond seven days without resolution, or ends in a tie—an outcome rare enough in competitive LoL that it carries negligible weight in pricing.
Vitality's historical standing in the LEC provides the primary reference frame. The organisation has consistently fielded competitive rosters and maintains stronger regional pedigree than GIANTX, which entered the LEC more recently. When established franchises face newer entrants at similar skill tiers, markets typically price the incumbent at 55–60% implied probability; the current 55% for Vitality aligns with this baseline. Comparable matchups between mid-table LEC sides over the past two seasons have shown that upsets occur at roughly 40–45% frequency, supporting the present crowd assessment.
Traders should monitor roster changes and scrim results reported by esports journalists in the week preceding the match. LEC schedule delays remain uncommon but have occurred mid-season; confirmation of the 13:15 ET start time on 14 August should be verified through official Riot Games announcements. Funding conditions on major crypto exchanges carry no direct bearing on this fixture, though extended market volatility occasionally correlates with reduced esports viewership and delayed broadcast scheduling.
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
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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%.
Trade LoL: GIANTX vs Team Vitality (BO3) - LEC Regular Season on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →