Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 1 O/U 8.5 | 100% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 1 Winner | 100% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 1 O/U 9.5 | 100% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 1 O/U 10.5 | 100% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 2 Winner | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Total Sets: O/U 2.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 2 O/U 8.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set Handicap +/-1.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Match O/U 21.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 2 O/U 9.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Match O/U 22.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set Handicap +/-1.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Set 2 O/U 10.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj Match O/U 23.5 | 50% |
| ITF Kursumlijska Banja: Vladimir Osminkin vs Vlado Jankanj | 0% |
| Completed Match | 0% |
Market context
Vladimir Osminkin and Vlado Jankanj are meant to meet in an ITF Men’s event in Kursumlijska Banja, and a **YES** share on this market pays out if Osminkin advances, while a **NO** share pays out if Jankanj advances. If the match is not played, ends level, or drifts beyond seven days without a winner, the market settles 50-50 instead, so the main question is whether this fixture produces a completed result before the settlement window closes.
The crowd-implied **0% YES** reading is unusually stark, but the available player data suggests why a market might price Osminkin as a long shot. Osminkin has a limited ITF record and poor recent form, with one 2026 match report showing a 1-4 year record in one source and another listing him with only a handful of career wins overall. H2H data also shows no previous professional meeting between the two players, so traders cannot lean on direct match-up history and must rely more on recent level, event context, and whether the draw actually holds together through the week.[1][2][9]
For traders, the key catalysts are simple: the published order of play, any late withdrawals, and whether the match is completed on the scheduled surface or pushed back by the tournament timetable. ITF and live-score listings are the fastest way to see whether the match remains on the card, while a sudden scratch would be material because a no-contest outcome would send the market to 50-50 rather than a player win. With the settlement deadline set a week after the original start date, any administrative delay, weather interruption, or retirement scenario could matter as much as pre-match form.[4][7][13]
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
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
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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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