Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 2 O/U 8.5 | 100% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 1 O/U 8.5 | 100% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 2 O/U 9.5 | 100% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set Handicap +/-1.5 | 100% |
| Astana: Erik Arutiunian vs Masamichi Imamura | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Total Sets: O/U 2.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 2 Winner | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Match O/U 21.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 1 Winner | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Match O/U 22.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 1 O/U 9.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set Handicap +/-1.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 2 O/U 10.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Set 1 O/U 10.5 | 0% |
| Astana: Erik Arutiunian vs Masamichi Imamura Match O/U 23.5 | 0% |
Market context
The Astana tournament will host a first-round encounter between Erik Arutiunian and Masamichi Imamura on 13 August 2026. Polymarket's conditional token structure currently prices this matchup with zero liquidity on the YES side—a reflection of minimal trading activity rather than certainty about the outcome. On Polygon, USDC-denominated shares in Arutiunian's advancement trade at negligible volume, suggesting either genuine indifference among traders or insufficient information to establish a baseline probability.
Comparable ATP Challenger matches between unseeded or lower-ranked players typically see sparse early trading, with probabilities clustering around 45–55 splits once meaningful volume materialises. Arutiunian, a Kazakhstani player competing on home soil, carries the traditional home-court advantage that has historically shifted outcomes in regional tournaments by 3–5 percentage points. Imamura's record against players ranked similarly to Arutiunian provides limited precedent; the pair have not met previously on the professional circuit, eliminating head-to-head data as a pricing anchor.
Tournament scheduling and player fitness represent the primary catalysts for this market. Any withdrawal announcements from either player before 13 August would trigger the 50–50 tie-break clause, whilst fixture delays beyond seven days without completion would similarly resolve to even odds. Traders should monitor the ATP's official draw confirmations and any injury reports from both camps. The settlement window closes 20 August 2026, providing a seven-day buffer for match completion and result confirmation on-chain.
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 Polymarket Scam?, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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%.
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