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Daily market read
Certainty reflects how much of this market we measured, not how good the market is.
Some quality checks score low, so the rating is held at its floor even though the price is easy to trade and the data is fresh.
Use only as a review target. Current-card issues must clear before this price is used as evidence.
The diligence packet carries the memo language, audit chain, and the Markdown, PDF, and JSON exports for this market.
Open the diligence packetWhy this rating
Composite 69 · Discount
Measurement certainty
Low
3 measured · 3 modeled · 0 not assessed
Certainty reflects how much of this market we measured, not how good the market is.
No full-provenance CME signal is linked to this condition in the current ledger window; absence of a signal is not proof of coherence.
A separate preview read: this market's book quality relative to peers at the same time-to-close and price range. It does not feed the Market Trust rating above.
Peer group: markets 1-7 days to scheduled close, priced 10-30c from a boundary. As of 2026-08-31 (UTC).
Quoted spread is tighter than ~71% of horizon-matched peers.
Order-book depth is deeper than ~75% of horizon-matched peers.
Peer cell: 238 markets, 291 market-day observations, trailing 28 days (2026-08-03 to 2026-08-30).
Resolution rules
Rules as stated by Polymarket, reproduced verbatim. Convexly has not independently reviewed them and does not endorse them; the rating's resolution-reliability pillar treats rule text as present but not independently reviewed.
This market refers to the tennis match between Stefanos Tsitsipas and Arthur Fils in the US Open ATP, originally scheduled for August 30, 2026 at 11:00AM ET. This market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Arthur Fils. This market will resolve to 'Arthur Fils' if Arthur Fils advances against Stefanos Tsitsipas. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Experimental rating caveat
Market Trust Cards are experimental market-quality diagnostics, not compliance certifications or validated credit ratings.
What travels with this read
Market Trust is a canary preview: verdict cutpoints are operator-set, and each read is a dated, descriptive diagnostic of market quality, not a prediction of the outcome and not a claim about what the probability should be. A prospective calibration test is filed and matures on resolved outcomes.
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Create a free accountNone of the wallets in Convexly's provably-complete set has been observed trading this market. That is a statement about this set's observed footprint, not about who trades here.
Check any Polymarket wallet →Quote it verbatim. The number and how the set was chosen travel together; the method is frozen and the per-wallet table is public.
Convexly rates this polymarket market "US Open ATP: Stefanos Tsitsipas vs Arthur Fils" as Discount, as of 2026-08-31 (UTC).
Per Convexly Market Trust, the polymarket market "US Open ATP: Stefanos Tsitsipas vs Arthur Fils" is rated Discount as of 2026-08-31T17:30:13.064Z (UTC). The rating describes whether the quoted market price was a clean enough data object to cite at that timestamp. This citation is market diligence, not investment advice, not a trading instruction, not a forecast, and not proof that the market probability is correct. Daily read: https://www.convexly.app/markets/atp-tsitsip-fils-2026-08-30
Canonical URL: https://www.convexly.app/markets/atp-tsitsip-fils-2026-08-30
Boundary of this page
This daily read is market diligence, not investment advice, not a claim of absolute truth, and not proof that any trader should buy or sell. It answers whether this market price had enough substrate to cite, monitor, discount, or ignore at the as-of timestamp, with receipts attached in the diligence packet.
Executability scored as worse-of(spread, depth) from a single orderbook snapshot; the two were merged from the former liquidity + depth pillars to stop double-counting one correlated source.
Resolution source and rule text are present but not independently reviewed.
9/16 accounts identifiable; identity coverage 79%; top-account flow share 39%; net directional flow unknown. Descriptive participant flow only; not a skill or smart-money signal.
No screen indicator flagged in the sampled window. Not a check that the market is free of coordinated trading.
17 linked artifacts; 0 missing hashes; 0 stale/failing sources.
How it adds up: composite = Σ(score × weight) / Σ(weight) across measured + heuristic pillars only. Pending and data-rights-blocked pillars are excluded from both numerator and denominator. Total contributing weight = 80.0.
Convexly is independent and is not affiliated with or endorsed by Polymarket or Manifold. Wallet and market data are derived from publicly available venue sources.
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