Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
51% | 49% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
51% | 49% | 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 |
|---|---|
| Odd/Even Total Kills | 51% |
| Game Handicap: GAM (-1.5) vs DetonatioN FocusMe (+1.5) | 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 | 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 | 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 | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Both Teams Slay Baron Nashor | 50% |
| Both Teams Destroy Inhibitors | 50% |
| Any Player Quadra Kill | 50% |
| Any Player Penta Kill | 50% |
| Odd/Even Total Kills | 50% |
| First Blood in Game 3? | 50% |
| Game Handicap: GAM (-2.5) vs DetonatioN FocusMe (+2.5) | 49% |
| Both Teams Slay a Dragon | 49% |
| Both Teams Slay a Dragon | 49% |
| Both Teams Slay a Dragon | 49% |
| First Blood in Game 4? | 49% |
| Both Teams Slay Baron Nashor | 48% |
| O/U 3.5 Games | 45% |
| Game 4 Winner | 35% |
| Game 2 Winner | 25% |
| First Blood in Game 2? | 25% |
| Game 3 Winner | 23% |
| Game 1 Winner | 22% |
| O/U 4.5 Games | 14% |
| Match Winner | 10% |
| First Blood in Game 1? | 1% |
Market context
DetonatioN FocusMe are due to face GAM Esports in a best-of-five that sits inside the LCP Group Stage, with the market resolving directly to the series winner unless the match is not played or is left without a result, in which case the contract can fall back to 50-50 settlement. The crowd-implied **22% YES** price is well below most published pre-match views, which have GAM as a clear favourite across recent preview and odds pages, with one listing GAM around **78%** and others showing similar strength. [5][10][11]
That discount makes sense against the head-to-head record. GAM beat DetonatioN FocusMe **2-0** in their January meeting and **2-1** in April, and one match tracker lists GAM as **5-0** in the broader series history, so there is a fairly consistent pattern rather than a one-off upset line. [2][7][10][18] In prediction markets, these LoL series often price more like a binary of “strong favourite wins cleanly” than a coin flip, so a low YES level can reflect both GAM’s edge and the fact that a BO5 leaves room for a longer series without changing the winner. [8][12][13]
For traders, the main catalysts are practical rather than macro: confirmation that the match starts on schedule, any broadcast or bracket updates, and whether the event is still listed as a BO5 in the official or mirrored schedules, since settlement depends on the match being completed or otherwise ruled. [1][5][10] Because the contract settles in **USDC**, on-chain pricing can move quickly if spot liquidity tightens or if market-wide risk appetite shifts around BTC and ETH, but for this specific event the decisive driver remains esports news flow and the live series state rather than broader crypto beta.
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.
- 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.
- 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: DetonatioN FocusMe vs GAM Esports (BO5) - LCP G… on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
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