Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Map 2 Winner | 100% |
| O/U 2.5 Games | 100% |
| Map 2 Total Rounds: Over/Under 21.5 | 90% |
| Map 1 Rounds Handicap: Nuclear TigeRES (-3.5) vs Sashi Esport (+3.5) | 90% |
| Map 2 Total Rounds: Over/Under 18.5 | 90% |
| Match Winner | 61% |
| Map 3 Total Rounds: Over/Under 21.5 | 54% |
| Map 3 Rounds Handicap: Nuclear TigeRES (-3.5) vs Sashi Esport (+3.5) | 50% |
| Map 3 Total Rounds: Over/Under 24.5 | 13% |
| Map 1 Total Rounds: Over/Under 24.5 | 10% |
| Map 1 Rounds Handicap: Sashi Esport (-3.5) vs Nuclear TigeRES (+3.5) | 10% |
| Map 1 Rounds Handicap: Sashi Esport (-6.5) vs Nuclear TigeRES (+6.5) | 10% |
| Map 1 Rounds Handicap: Nuclear TigeRES (-9.5) vs Sashi Esport (+9.5) | 10% |
| Map 2 Rounds Handicap: Nuclear TigeRES (-6.5) vs Sashi Esport (+6.5) | 10% |
| Map 2 Total Rounds: Over/Under 24.5 | 10% |
| Map 2 Rounds Handicap: Nuclear TigeRES (-3.5) vs Sashi Esport (+3.5) | 10% |
| Map 2 Rounds Handicap: Nuclear TigeRES (-9.5) vs Sashi Esport (+9.5) | 10% |
| Map 1 Winner | 0% |
| Map Handicap: SASHI (-1.5) vs Nuclear TigeRES (+1.5) | 0% |
| Map 1 Total Rounds: Over/Under 21.5 | 0% |
| Map Handicap: NTR (-1.5) vs Sashi Esport (+1.5) | 0% |
Market context
Based on real-money crowd forecasting, counter-strike: sashi esport vs nuclear tigeres (bo3) - nodwin clutch series playoffs stands at 100% likelihood according to current market consensus. This market refers to the Counter-Strike Semifinal 1 match between Sashi Esport and Nuclear TigeRES in the NODWIN Clutch Series Playoffs, initially scheduled for August 6 at 4:00AM…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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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