Istanbul 2: Arthur Weber vs Florent Bax

Platform comparison

Market context

Polymarket is pricing this Arthur Weber v Florent Bax contract at **0% YES** today, which means the market is effectively saying Weber is not expected to advance unless there is an unexpected late development in Istanbul. On Polymarket, the position is held in **USDC** on **Polygon**, and settlement is driven by the outcome of the conditional token tied to this match; if the match is not played, ends level, or is pushed beyond the market’s timeout, the contract can resolve to the 50-50 fallback rather than either side outright winning.

Weber’s profile is that of a long-time Challenger and ITF-level player rather than a regular ATP main-draw name. Public player records show a career-high singles ranking of **303** in October 2023, with most of his results coming on the Challenger and Futures/ITF circuit, and multiple sources place him in his early thirties with only limited top-level match volume[1][3][10]. That background matters for reading a near-zero price: these markets often get driven less by brand recognition and more by whether a player is actually entered, fit, and on court, especially in lower-tier events where withdrawals and walkovers are common.

For traders, the key catalysts are the **official draw sheet, order of play, and any pre-match withdrawal or retirement notices** from the tournament. Because the market description pays out on whether Weber advances rather than simply whether the fixture was announced, any last-minute change in status can matter more than the original scheduling slot. The relevant clock is also the settlement window ending **2026-08-10T08:00:00Z**, so a postponement, cancellation, or unfinished match could push the contract into the fallback logic instead of a straightforward winner-take-all resolution.

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.

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.