Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
90% | 10% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
90% | 10% | 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 |
|---|---|
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 1 O/U 8.5 | 90% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 1 O/U 9.5 | 90% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 1 O/U 10.5 | 90% |
| Completed Match | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 2 Winner | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Match O/U 21.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 2 O/U 8.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set Handicap +/-1.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Total Sets: O/U 2.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 2 O/U 9.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Match O/U 22.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set Handicap +/-1.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 2 O/U 10.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Match O/U 23.5 | 50% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans | 1% |
| ITF M25 Idanha-a-Nova 2 Men: Artem Alekseychuk vs Tiago Boschmans Set 1 Winner | 0% |
Market context
Artem Alekseychuk faces Tiago Boschmans in the qualifying round of the ITF M25 Idanha-a-Nova 2 tournament, scheduled for 17 August 2026. The match represents a lower-tier professional tennis event where both players compete for ranking points and prize money. Alekseychuk, a Ukrainian player, and Boschmans, competing from Portugal, are ranked outside the ATP top 500, making this a genuine competitive encounter rather than a mismatch. The current 1% implied probability for Alekseychuk's victory suggests the market perceives a substantial disadvantage for the Ukrainian player, though ITF M25 qualifying matches frequently produce unexpected results given the proximity in skill levels at this tier.
ITF M25 qualifying rounds historically show volatility in outcomes, with seeding and recent form often diverging from longer-term rankings. Players at this level experience significant variance in performance based on court surface preference, travel fatigue, and recent match rhythm. Boschmans' home advantage in Portugal may factor into the pricing, though home-court benefit at ITF events is less pronounced than on the ATP circuit. The 1% probability reflects either substantial recent form disparity or market participants holding strong conviction on Boschmans' superiority.
Traders should monitor tournament draw confirmations and any last-minute withdrawals, which could trigger the 50-50 tie-break clause if the match is cancelled or delayed beyond seven days. Settlement occurs on 24 August 2026, allowing a one-week window for match completion. USDC settlement on-chain will execute once the ITF officially confirms the qualifying round result, with no intermediate appeals process typical of professional tennis.
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
- 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.
- 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%.
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