Pronóstico: National Bank Open: Mirra Andreeva vs Leylah Fernandez

Platform comparison

Market context

Polymarket’s contract is pricing Mirra Andreeva at **75%** to advance against Leylah Fernandez, so the market is still giving Andreeva a clear but not overwhelming edge on the conditional tokens settled in USDC on Polygon. For traders, that means the remaining 25% is largely the market’s view of Fernandez’s upset chance, plus the small but real path to a 50-50 resolution if the match is not completed within the market’s rules.

That pricing is broadly consistent with the recent head-to-head. Andreeva has led the matchup 2-1 overall, but Fernandez took their hard-court meeting in Hong Kong in October 2023 after dropping the first set, while Andreeva won their clay-court meetings in Madrid, including a straight-sets win in the 2026 Madrid quarter-finals.[2][3][8][13] Season-level form also points in Andreeva’s favour: one compiled 2026 comparison shows her with a much stronger win-loss record and superior return numbers, which matters on hard courts where first-strike margins can swing quickly.[10]

The main catalysts are straightforward: final draw order, any schedule shifts, and whether the match is actually played before the settlement window closes on 2026-08-15T14:00:00Z. A listed match page shows the fixture for 7 August 2026, but tennis schedules can move with court assignments, weather, and the progress of preceding matches, so traders should watch for official tournament updates and live scoreboards as the day develops.[1][5][15] If the match is postponed, abbreviated, or abandoned, Polymarket’s contract rules determine whether it resolves to one player or reverts to 50-50.

Sources: 1 · 2 · 3 · 4 · 5

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.

FAQ

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.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.