Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Astana: Petr Bar Biryukov vs Taisei Ichikawa | 100% |
| Completed Match | 100% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 1 Winner | 100% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 2 Winner | 100% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 2 O/U 8.5 | 100% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set Handicap +/-1.5 | 100% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Total Sets: O/U 2.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 1 O/U 8.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Match O/U 21.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 1 O/U 9.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 2 O/U 9.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set Handicap +/-1.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Match O/U 22.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 1 O/U 10.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Set 2 O/U 10.5 | 0% |
| Astana: Petr Bar Biryukov vs Taisei Ichikawa Match O/U 23.5 | 0% |
Market context
Petr Bar Biryukov faces Taisei Ichikawa in a first-round match at the Astana ATP 500 event, originally scheduled for 11 August 2026. The market currently reflects 100% implied probability for Biryukov's advancement, suggesting either significant pre-match information favouring the Russian player or minimal liquidity depth at current odds. Settlement occurs on 18 August 2026, allowing a seven-day window for match completion; any cancellation, tie, or delay beyond that threshold triggers a 50-50 resolution regardless of on-court outcome.
Historical ATP 500 seeding patterns and qualifying draws indicate that first-round matchups often reflect substantial rating disparities. Biryukov's current ranking relative to Ichikawa's positioning within the draw will determine whether the 100% probability reflects genuine form differential or market inefficiency. Recent ATP ranking updates and entry lists for the Astana event should clarify whether Biryukov holds a top-seed advantage or whether both players entered via qualifying rounds, which would substantially alter baseline expectations.
Traders should monitor official ATP communications regarding weather delays, court availability, and any player withdrawals through early August. The match's 1:00 AM ET scheduling creates potential for rescheduling if weather impacts the tournament schedule. USDC settlement mechanics on btc-prediction.bet mean that resolution depends entirely on official ATP records; any ambiguity regarding match completion status will be resolved according to ATP rulebooks rather than broadcast records. Funding rates on correlated tennis derivatives or BTC spot volatility during the settlement window are unlikely to materially influence this specific match outcome.
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.
- 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%.
Trade Astana: Petr Bar Biryukov vs Taisei Ichikawa on BTC Prediction
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