Halle Open: Frances Tiafoe vs Felix Auger-Aliassime

Platform comparison

Active sub-markets

Market context

Polymarket is pricing this Halle quarterfinal contract at **100% YES** on USDC-settled, Polygon-based conditional tokens, so the market is effectively saying Felix Auger-Aliassime is already treated as the advance candidate rather than as a live coin-flip. Because the market resolves on who advances, not who wins a specific set, traders are really watching whether the ATP event produces an official completed result for one player before the 7-day fallback window closes.

That near-certain pricing makes sense against the tennis record and the live tournament context. Auger-Aliassime has a 3-0 head-to-head edge over Tiafoe, including straight-sets wins in earlier meetings, which frames him as the more established matchup side on fast grass[1][3]. Tennis.com’s live match page also had Auger-Aliassime as the projected winner at 60%, while ATP Halle coverage showed both players progressing through the draw in 2026 before this meeting[2][5][7][9].

For a trader, the key catalysts are simple: whether the match is played as scheduled, whether there is any late withdrawal or retirement, and whether the draw or order of play is altered by the tournament desk. Coverage around Halle shows the event has already been moving through its quarterfinal stage, so the main live risk is not a form debate but an administrative one — a postponement, cancellation, or incomplete match that pushes the contract into its 50-50 fallback terms[4][5][7][10].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Halle Open: Frances Tiafoe vs Felix Auger-Aliassime across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket Legit? — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Is this market available outside the US?

Polymarket Legit? is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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 it cost to trade on Polymarket Legit??

Zero. Polymarket Legit? routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.