Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Sport Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Map 1 Winner | 100% |
| Match Winner | 92% |
| Map 1 Total Rounds: Over/Under 21.5 | 90% |
| Map 1 Total Rounds: Over/Under 18.5 | 90% |
| Map 2 Winner | 77% |
| Map Handicap: 1WIN (-1.5) vs BASEMENT BOYS (+1.5) | 57% |
| Map 2 Rounds Handicap: 1WIN (-3.5) vs BASEMENT BOYS (+3.5) | 50% |
| Map 2 Total Rounds: Over/Under 21.5 | 50% |
| Map 3 Rounds Handicap: 1WIN (-3.5) vs BASEMENT BOYS (+3.5) | 50% |
| Map 3 Total Rounds: Over/Under 21.5 | 50% |
| Map 2 Rounds Handicap: 1WIN (-9.5) vs BASEMENT BOYS (+9.5) | 50% |
| Map 2 Total Rounds: Over/Under 24.5 | 50% |
| Map 2 Total Rounds: Over/Under 18.5 | 50% |
| O/U 2.5 Games | 29% |
| Map 1 Rounds Handicap: 1WIN (-3.5) vs BASEMENT BOYS (+3.5) | 10% |
| Map 1 Rounds Handicap: 1WIN (-6.5) vs BASEMENT BOYS (+6.5) | 10% |
| Map 1 Total Rounds: Over/Under 24.5 | 10% |
| Map 1 Rounds Handicap: 1WIN (-9.5) vs BASEMENT BOYS (+9.5) | 10% |
Market context
1WIN meet BASEMENT BOYS in a best-of-three decider in the Esports World Cup Open Qualifier, with the market implying a strong lean towards 1WIN at 82%. That price is broadly consistent with recent pre-match views that have 1WIN as the favourite, but it should be read against a head-to-head that has been much less one-sided than the market suggests: the teams have split prior meetings 2-2 in recent history, and BASEMENT BOYS have already taken a BO3 against 1WIN in October 2025.[2][17]
The form picture is mixed but still points towards 1WIN’s edge. Bo3.gg lists 1WIN with improving momentum, a 55% win rate over the last month, and a useful Nuke record of 59% across 34 maps, while BASEMENT BOYS are described as having 73% win rate last month, which supports the case that they are not a routine underdog in this qualifier.[1] The current 1WIN lineup is built around Ax1Le, nafany, fame, BELCHONOKK and Artfr0st, giving them a more established core than BASEMENT BOYS’ five-man stack of kr1vda, OWNER, Tr0ublE, Maggent and fakerealityy.[1][3]
For traders, the main catalysts are the live match status, map veto, and any late schedule movement, since the market only voids to 50-50 if the game is not played or is pushed beyond the settlement window.[1] With the event still marked as upcoming on multiple listings, the practical risk is not roster quality but execution: a late start, a veto that steers away from 1WIN’s stronger maps, or an unexpected absence could narrow a market that has otherwise priced them as the clear side.[4][5]
Methodology
Sports-specific comparison page for Counter-Strike: 1WIN vs BASEMENT BOYS (BO3) - Esports World Cup Open Qualifier Group 6. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
UK Frequently Asked Questions
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- 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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