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 |
|---|---|
| Match Winner | 60% |
| Game 1 Winner | 56% |
| Game 2 Winner | 56% |
| Any Player Penta Kill | 52% |
| First Blood in Game 2? | 52% |
| Total Kills Over/Under 27.5 in Game 1? | 52% |
| Total Kills Over/Under 27.5 in Game 2? | 52% |
| 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% |
| 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% |
| O/U 2.5 Games | 48% |
| First Blood in Game 1? | 47% |
| Total Kills Over/Under 30.5 in Game 2? | 43% |
| Total Kills Over/Under 30.5 in Game 1? | 40% |
| Game Handicap: IG (-1.5) vs Ninjas in Pyjamas (+1.5) | 33% |
| Any Player Penta Kill | 26% |
| Any Player Penta Kill | 26% |
Market context
Invictus Gaming and Ninjas in Pyjamas are scheduled for a best-of-three in LPL Group Nirvana, with the market set to pay out on the match result unless the series is not completed, in which case the contract falls back to 50-50 under its stated rules. Bo3 tracker pages and tournament listings place the series on 6 August at 09:00 UTC, and the market’s 56% YES price implies a modest edge for Invictus rather than a strong consensus. [2][8][14]
That pricing sits in the middle of a rivalry that has often been close enough to swing on draft or side selection. Head-to-head records compiled by esports databases show Ninjas in Pyjamas with a historical edge overall, while recent meetings have been more balanced, including multiple BO3 results split across the last two seasons. Polymarket’s own event page also flags renewed Invictus roster strength for Split 3, which helps explain why the line is not tracking a clear underdog position. [9][13][16][20]
For traders, the key catalyst is not macro crypto direction but whether the series starts on schedule and is completed within the settlement window, because a cancellation, tie, or delay beyond seven days would force a 50-50 outcome. On-chain, the contract settles in USDC, so any wider moves in stablecoin liquidity matter more for execution than for resolution; outside the contract itself, BTC and ETH spot and funding conditions are only relevant insofar as they affect broader prediction market risk appetite. If the published start time slips or the event page changes state, that is the main signal to watch. [1][2][13]
Methodology
This page reads LoL: Invictus Gaming vs Ninjas in Pyjamas (BO3) - LPL Group Nirvana on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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 are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- 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.
- 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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