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National Bank Open: Camila Osorio vs Ekaterina Alexandrova

"National Bank Open: Camila Osorio vs Ekaterina Alexandrova" — odds, fees, regulatory status. Polymarket Tax UK as a Polymarket alternative.

Completed Match 100% National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 2 O/U 8.5 100% National Bank Open: Camila Osorio vs Ekaterina Alexandrova Match O/U 21.5 100% National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 1 O/U 8.5 100% Volume: $459K Closes: 11 Aug 2026
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National Bank Open: Camila Osorio vs Ekaterina Alexandrova

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Tax 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.

OutcomeProbability
Completed Match100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 2 O/U 8.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Match O/U 21.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 1 O/U 8.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set Handicap +/-1.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 2 O/U 9.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 2 O/U 10.5100%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova0%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 1 Winner0%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Total Sets: O/U 2.50%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 2 Winner0%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Match O/U 22.50%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 1 O/U 9.50%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Match O/U 23.50%
National Bank Open: Camila Osorio vs Ekaterina Alexandrova Set 1 O/U 10.50%

Market context

Camila Osorio’s second-round meeting with Ekaterina Alexandrova at the National Bank Open has been priced by the crowd at 18% YES, which is materially below most tennis books and model estimates in circulation. Recent market and preview data put Alexandrova around the high-70s in win probability, with bookmaker prices roughly near evens to a slight Alexandrova edge and several independent models closer to a 54–46 split rather than a one-sided match-up.[1][6][12] That gap makes the current crowd price look like a heavy discount on Osorio, but the historical frame is still relevant: this is a meeting between a lower-ranked clay-court specialist and a top-20 level opponent, so short-price consensus has tended to sit with Alexandrova even when matchup models narrow the margin.[1][2][7]

For traders, the main catalysts are simple: confirmed start time, any postponement, and whether the match is actually completed within the market window. The event was listed for 4 August at 16:30 UTC, and the settlement rules mean a cancellation, tie, or delay beyond seven days without a winner pushes the market to 50-50; once play begins, incomplete matches depend on the eventual official advancement outcome. If you are assessing accessibility rather than match odds, the regulatory overlay matters too: German GlüStV treatment can affect whether a user can access or be restricted from a given betting-style product, US CFTC reach is relevant for whether a derivatives-style platform can lawfully offer exposure to US persons, and “no-KYC up to $1,500” means smaller-volume use may not require full identity verification, but it does not remove local restrictions or tax/reporting obligations tied to the user’s jurisdiction.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of National Bank Open: Camila Osorio vs Ekaterina Alexandrova 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

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.
Can I trade anonymously?
Pseudonymously, yes — up to the KYC threshold. Polymarket Tax UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
What happens during a tax audit?
You're responsible for documenting your trades. Polymarket Tax 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 Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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