Pronóstico: 2026 Women’s US Open Winner (Tennis)

Platform comparison

Market context

Polymarket is pricing the 2026 Women’s US Open winner contract at **30% YES** for the current leading outcome, which is broadly in line with the wider betting market around Aryna Sabalenka as the clear favourite.[10][1][12] On Polymarket, traders are buying and selling USDC-settled conditional tokens on Polygon, so the quoted price reflects the market’s live view of who will actually lift the trophy rather than a simple outright bookmaker line.[10]

That 30% reading sits in a familiar range for a women’s Grand Slam field that is strong at the top but still open enough for a hard-court upset. Sabalenka has been framed by multiple books as the front-runner, with Iga Swiatek, Coco Gauff and Elena Rybakina clustered behind her in the single-digit-to-low-double-digit range, which is typical of a market where one player is favoured but not dominant.[1][3][12][16] In practical terms, that means the Polymarket contract is not pricing a runaway certainty; it is pricing a title race with a clear leader and several credible challengers.

Traders should watch the draw, seedings and any late fitness or withdrawal news, because those are the most direct catalysts for a move in a winner market of this type. The tournament runs from 23 August to 13 September 2026, and any change that makes a listed player unable to win per the tournament rules would push that specific outcome towards **No** on resolution mechanics.[Market description] Recent preview coverage still places Sabalenka at the top of the board, with odds in the +200 to +260 range, so the main sensitivity is whether the gap narrows or widens as Flushing Meadows approaches.[1][7][11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Qué Es, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.