Geneva Open: Stefanos Tsitsipas vs Learner Tien

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Market context

A Stefanos Tsitsipas v Learner Tien contract on Polymarket is showing 0% YES, which means the market is currently pricing Tsitsipas as having no recorded chance of advancing, with positions settling in USDC on Polygon through the usual conditional-token structure. That makes the question less about pre-match tennis form and more about whether the contract has already been impacted by the match outcome: if Tsitsipas has already advanced, the YES side should eventually converge towards settlement value; if the match was not played, or ran beyond the market’s delay rules without a winner, the outcome can fall back to 50-50 under the stated resolution terms.

For context, markets on ATP matches can trade at extreme prices when information is moving faster than the scoreboard, especially around retirements, walkovers, or delayed data feeds. A 0% print is more consistent with a contract that has effectively been resolved against Tsitsipas than with a straightforward pre-match assessment of his chances. Recent ATP reporting from Geneva also matters here: official match highlights on the ATP Tour site described Learner Tien as having beaten Tsitsipas in Geneva, which would align with a one-sided market outcome rather than a live pre-match price.

The key trader watchpoints are straightforward: confirm whether the underlying Geneva Open match was completed, whether any retirement, walkover, or scheduling change was recorded, and whether the result has been reflected in the event feed used for settlement. If the contest was played and Tien advanced, the token should settle accordingly; if there was a cancellation, no play, or a delay beyond seven days from the scheduled date without a winner, the market’s 50-50 fallback becomes relevant.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), 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

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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram 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.

What does it cost to trade on PolyGram?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.