US Open, Qualification ATP: Lloyd Harris vs Pablo Llamas Ruiz

Platform comparison

Market context

Polymarket is pricing Lloyd Harris at 62% today, with the contract tied to whether he advances past Pablo Llamas Ruiz in the US Open men’s qualifying final. The market settles via USDC on Polygon using conditional tokens, so the key question is not who looked better in isolation, but which player is officially recorded as advancing before the settlement window closes.

That 62% sits close to outside tournament pricing seen elsewhere, where Harris was listed around 56% and Llamas Ruiz around 44% before play[1]. The pair arrived here by different routes: Harris beat Bernard Tomic and then Henrique Rocha in qualifying, while Llamas Ruiz beat Alex Bolt and Vitaliy Sachko, with both men entering on hard courts and with no prior head-to-head on record[3][4].

For traders, the main catalysts are straightforward: the match status, any revised court order, and whether the fixture is completed cleanly rather than postponed, suspended or walked over. Public schedules had the qualifier on Court 14, and the match was also still being listed with start-time updates on Wednesday and Thursday, which matters because unresolved or unplayed contests can push the contract towards its fallback 50-50 outcome if no winner is determined by 10 September[2][5][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 PolyGram, 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 PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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.

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.