Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 2 Winner | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Total Sets: O/U 2.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Match O/U 21.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 1 O/U 8.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Match O/U 22.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 1 O/U 9.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Match O/U 23.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 1 O/U 10.5 | 100% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 1 Winner | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 2 O/U 8.5 | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 2 O/U 9.5 | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set 2 O/U 10.5 | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set Handicap +/-1.5 | 0% |
| National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini Set Handicap +/-1.5 | 0% |
Market context
Sofia Kenin and Lucrezia Stefanini were scheduled for a National Bank Open qualifying match, with Kenin listed around WTA 116 and Stefanini around WTA 144 in match listings. The market’s 0% YES price is therefore not a statement that Kenin is without a live path, but that the crowd is assigning no immediate resolution to her advancing under the market’s current terms, which include a 50-50 outcome if the match is not played or is left undecided past the delay threshold.[11][5]
The best comparable frame is their lack of direct head-to-head history, so there is no prior matchup result to anchor expectations, and recent form points in different directions. One stats feed shows Stefanini with a stronger 2026 win rate than Kenin, while Kenin’s broader hard-court profile is still the more established of the pair, including a listed hard-court service-hold rate around 77.4% and a career-level overall winning record above 59% on one profile.[1][2][14] In practical terms, that kind of split often keeps pre-match probabilities sensitive to surface, fitness and any late draw changes rather than to name recognition alone.[1][14]
For accessibility, the relevant regulatory lens is that Germany’s GlüStV framework can restrict or complicate access to gambling-style products for residents, while US traders should note that CFTC reach can matter even for internet-based prediction contracts if a product is deemed to fall within US commodity-derivatives supervision. “No-KYC up to $1,500” generally means a user can usually deposit, trade and withdraw only within that cap without identity verification; for a match-specific market like this, it lowers onboarding friction but does not remove jurisdictional restrictions, and higher activity can still trigger KYC checks.[1][11] The main catalysts are straightforward: whether the WTA/National Bank Open qualifying schedule holds, whether either player withdraws, and whether the match starts and completes before the seven-day resolution deadline, because cancellation, a tie, or a prolonged postponement flips settlement away from a normal one-winner outcome.[11][18]
Methodology
This overview of National Bank Open, Qualification: Sofia Kenin vs Lucrezia Stefanini reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Do I need to KYC for Polymarket Legal UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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