Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Polymarket Legal in Canada) Pick polygram.ink (preferred broker) |
22% | 78% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
22% | 78% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Aryna Sabalenka | 22% |
| Coco Gauff | 17% |
| Iga Swiatek | 16% |
| Jessica Pegula | 9% |
| Naomi Osaka | 6% |
| Mirra Andreeva | 5% |
| Elena Rybakina | 4% |
| Amanda Anisimova | 4% |
| Karolina Muchova | 3% |
| Marta Kostyuk | 3% |
| Linda Noskova | 2% |
| Elina Svitolina | 2% |
| Alexandra Eala | 2% |
| Qinwen Zheng | 1% |
| Madison Keys | 1% |
| Diana Shnaider | 1% |
| Iva Jovic | 1% |
| Barbora Krejcikova | 0% |
| Marketa Vondrousova | 0% |
| Victoria Mboko | 0% |
| Emma Navarro | 0% |
| Clara Tauson | 0% |
| Belinda Bencic | 0% |
| Emma Raducanu | 0% |
| Jasmine Paolini | 0% |
| Paula Badosa | 0% |
| Maya Joint | 0% |
| Ekaterina Alexandrova | 0% |
| Jelena Ostapenko | 0% |
| Daria Kasatkina | 0% |
| Tereza Valentova | 0% |
| Anastasia Potapova | 0% |
| Donna Vekic | 0% |
| Dayana Yastremska | 0% |
| Liudmila Samsonova | 0% |
| Xiyu Wang | 0% |
| Ashlyn Krueger | 0% |
| Marie Bouzkova | 0% |
| Beatriz Haddad Maia | 0% |
| Elise Mertens | 0% |
| Sofia Kenin | 0% |
| Katie Boulter | 0% |
| Other | 0% |
| Sorana Cirstea | 0% |
| Maja Chwalinska | 0% |
| Anna Kalinskaya | 0% |
| Sara Bejlek | 0% |
| Ann Li | 0% |
| Leylah Fernandez | 0% |
| Maria Sakkari | 0% |
| Diane Parry | 0% |
| Nadia Podoroska | 0% |
| Janice Tjen | 0% |
| Cristina Bucsa | 0% |
| Magdalena Frech | 0% |
| Katerina Siniakova | 0% |
| Daria Snigur | 0% |
| Lilli Tagger | 0% |
| Zeynep Sonmez | 0% |
| Peyton Stearns | 0% |
| Viktorija Golubic | 0% |
| Camila Osorio | 0% |
| Caty McNally | 0% |
| Elisabetta Cocciaretto | 0% |
| Magda Linette | 0% |
| Sloane Stephens | 0% |
| Taylor Townsend | 0% |
Market context
2026 Women’s US Open Winner (Tennis). The market is currently pricing the outcome at 22% YES, meaning crowd-implied probability sits at that level. Settlement is scheduled for 2026-09-13T00:00:00Z. Unlike a sportsbook, the price you see is set by buyers and sellers competing in a live order book — there is no house edge or bookmaker margin to fade.
World-affairs prediction markets price discrete geopolitical outcomes — ceasefires, treaty signings, leadership transitions — and tend to drift on rumour and snap-correct on official announcements.
Watch for the underlying catalysts that move this category: each official announcement, dataset release, or scheduled milestone generally produces a step change in the implied probability. Trades execute instantly on Polygon, and shares pay $1 each at resolution if your side wins.
Methodology
This overview of 2026 Women’s US Open Winner (Tennis) 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
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Polymarket Legal in Canada has a different geo footprint.
- 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. Is Polymarket Legal in Canada exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- 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).
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