Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 | 100% |
| O/U 2.5 Games | 100% |
| Map 1 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Total Rounds: Over/Under 21.5 | 100% |
| Map 3 Total Rounds: Over/Under 21.5 | 100% |
| Map 2 Total Rounds: Over/Under 24.5 | 100% |
| Map 2 Winner | 0% |
| Map Handicap: BTF (-1.5) vs ex-RUSTEC (+1.5) | 0% |
| Map Handicap: ex-RUSTEC (-1.5) vs Butterfly (+1.5) | 0% |
| Map 1 Total Rounds: Over/Under 24.5 | 0% |
| Map 1 Rounds Handicap: ex-RUSTEC (-6.5) vs Butterfly (+6.5) | 0% |
| Map 2 Rounds Handicap: Butterfly (-3.5) vs ex-RUSTEC (+3.5) | 0% |
| Map 2 Rounds Handicap: Butterfly (-9.5) vs ex-RUSTEC (+9.5) | 0% |
| Map 2 Total Rounds: Over/Under 30.5 | 0% |
| Map 3 Rounds Handicap: Butterfly (-3.5) vs ex-RUSTEC (+3.5) | 0% |
| Map 3 Rounds Handicap: ex-RUSTEC (-3.5) vs Butterfly (+3.5) | 0% |
| Map 3 Rounds Handicap: ex-RUSTEC (-6.5) vs Butterfly (+6.5) | 0% |
| Map 3 Total Rounds: Over/Under 24.5 | 0% |
| Map 3 Total Rounds: Over/Under 27.5 | 0% |
Market context
Butterfly’s quarter-final against ex-RUSTEC is pricing like a near-certain Butterfly win, with the crowd implying **100% YES**. That is well above the broader pre-match consensus in the match data, where Butterfly are still favoured but not to anything like a clean sweep: model and bookmaker-style reads sit closer to a modest edge, with Butterfly around the mid-50s and ex-RUSTEC still a live outsider in a best-of-three. [2][12]
For handicapper context, that makes Butterfly the favourite but not an obvious “no-brainer” at market level. Recent form and ranking signals lean Butterfly — one snapshot cites four wins in their last five and a higher HLTV position, roughly #73 versus ex-RUSTEC near #96 — while another odds feed still prices Butterfly as the shorter side at about 1.65, implying roughly 56%, against ex-RUSTEC at about 2.1. Comparable tournament listings also show ex-RUSTEC have been competitive enough to take maps and series in this event, which is the main contrarian angle if the market has overreacted to the favourite label. [2][8][12][13]
The main catalyst is simple: whether the match is actually completed on schedule and whether there is any format disruption, because prediction markets on this event resolve differently if the contest is not played, tied, or pushed beyond the settlement window. Public match pages put the series in the NODWIN Clutch playoffs and either underway or scheduled around 5 August, but there is some inconsistency across listings on exact start status, so traders usually watch bracket updates, official stream postings, and any walkover or forfeit news before the clock runs out. [4][5][6]
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 Counter-Strike: Butterfly vs ex-RUSTEC (BO3) - NODWI… on Who Will Win
Live order book, 0% fees, USDC settlement in seconds.
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