ProbCastOdds Reliability
TodayTop MoversMarketsWhat ChangedAccuracyWatchlist
⌘K
Checking…
Hot Markets
Will Bitcoin reach $80,000 in August?62%▲25.6Will Bitcoin reach $82,500 in August?38%▲18.7Will Ethereum reach $2,600 in August?52%▼20.8Will Ethereum reach $2,700 in August?31%▲13.8Will Bitcoin reach $85,000 in August?19%▲10.5Bitcoin Up or Down on August 22?54%▼23.0Will Bitcoin reach $80,000 by December 31, 2026?84%▲10.5Will Ethereum reach $2,600 August 17-23?16%▼25.4Will WTI Crude Oil (WTI) hit (HIGH) $90 in August?62%▲7.0Will Ethereum reach $3,000 in August?7%▲2.6Will Bitcoin dip to $70,000 in August?20%▲3.0Will Bitcoin reach $85,000 by December 31, 2026?60%▲6.0Will Bitcoin dip to $67,500 in August?10%▼5.0Clarity Act (H.R.3633) signed into law in 2026?25%▼4.0Will Elon Musk post 65-89 tweets from August 20 to August 22, 2026?13%▲9.8Will Bitcoin dip to $55,000 by December 31, 2026?24%▼2.5
Will Bitcoin reach $80,000 in August?62%▲25.6Will Bitcoin reach $82,500 in August?38%▲18.7Will Ethereum reach $2,600 in August?52%▼20.8Will Ethereum reach $2,700 in August?31%▲13.8Will Bitcoin reach $85,000 in August?19%▲10.5Bitcoin Up or Down on August 22?54%▼23.0Will Bitcoin reach $80,000 by December 31, 2026?84%▲10.5Will Ethereum reach $2,600 August 17-23?16%▼25.4Will WTI Crude Oil (WTI) hit (HIGH) $90 in August?62%▲7.0Will Ethereum reach $3,000 in August?7%▲2.6Will Bitcoin dip to $70,000 in August?20%▲3.0Will Bitcoin reach $85,000 by December 31, 2026?60%▲6.0Will Bitcoin dip to $67,500 in August?10%▼5.0Clarity Act (H.R.3633) signed into law in 2026?25%▼4.0Will Elon Musk post 65-89 tweets from August 20 to August 22, 2026?13%▲9.8Will Bitcoin dip to $55,000 by December 31, 2026?24%▼2.5
Home/Macro / Fed/Will Flavio Cobolli win the 2026 Men's US Open?
PolymarketMacro / FedUpdated 10m ago

Will Flavio Cobolli win the 2026 Men's US Open?

Market probability
1.7%
−1.3 percentage points
over 24 hours2.9% → 1.7%
21 days until the scheduled event
Deadline: September 12, 2026 at 8:00 PM ET
Resolution follows the outcome of the scheduled event.

Confirmed repricing; the market has settled at the new level.

The pricing is supported by healthy trading volume and market depth, a tight spread.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Strong

The pricing is supported by healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$2.6K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

The 2026 U.S. Open tennis tournament is scheduled for August 23 - September 13, 2026.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

The 2026 U.S. Open tennis tournament is scheduled for August 23 - September 13, 2026. This market will resolve to the player that wins the 2026 U.S. Open Men’s Singles Tournament. If at any point it becomes impossible for a listed player to win the 2026 U.S. Open Men’s Singles Tournament per the rules of the tournament, the corresponding market will resolve to “No”. If the 2026 U.S. Open Men’s Singles Tournament is cancelled, postponed after October 31, 2026, or there is otherwise no winner declared within that timeframe, this market will resolve to “Other”. The primary resolution source will be official information from the U.S. Open (https://www.usopen.org/index.html); however, a consensus of credible reporting may also be used.

What could move this market next?

  • The scheduled event takes placeSeptember 12, 2026 at 8:00 PM ET

    The contract resolves on the event's outcome.

Derived from the contract's own mechanics as of Aug 22, 2:38 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: high · expected error ±11 pts.

Trading normallyLegacy movement classifier: meaningful

What's happening

medium classifier confidence
Trading normally

Liquid, two-sided, and calm. The current price reads as settled consensus — the latest print is a reasonable summary of what the market believes.

Change (pts)1H-0.16H-1.324H-1.37D-1.3
Score breakdown — Movement, Liquidity & Trust

ProbCast Trust Score

70/ 100 · Medium

Reasonably supported. Generally reliable, with minor caveats. Main caveat: limited history.

ProbCast measures how reliable this market probability appears — not what to trade.

Movement28

Magnitude of recent probability change

Liquidity80

Related markets

Will the Fed increase interest rates by 50+ bps after the September 2026 meeting?

0%YESTrust 96
Polymarket$1.3M 24h

Will there be no change in Fed interest rates after the September 2026 meeting?

69%YESTrust 87
Polymarket$694.6K 24h

Will the Fed decrease interest rates by 25 bps after the September 2026 meeting?

1%YESTrust 96
ProbCast — Odds Reliability

Know whether prediction-market odds can be trusted. ProbCast analyzes liquidity, market activity, spreads, and price movement to help distinguish meaningful repricing from thin-market noise.

Questions? Chat with us on Telegram
TodayTop MoversEventsAll MarketsWhat ChangedVenue DivergencePolymarket vs KalshiMethodologyCoverageMeta's ArenaWatchlistTerms of UsePrivacyCrypto
  • Liquid, two-sided, and calm — price behaving as settled consensus

The latest price is a usable but caveated read — weigh it with the market state.

More details — reliability score, dynamics, durability
Reliability score
52Medium
Where the price path tends to go next413 observed
  • Stable consensus94%
  • Choppy / mean-reverting2%
  • News repricing2%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~7h
PredictabilityStable

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$89.3K

Liquidity

$70.9K

Total volume

$304.2K

Category
Macro / Fed
Venue
Polymarket
Open interest
—
Spread
0.1 pts
Best bid
1.6%
Best ask
1.7%
7-day range
1.7% – 2.9%
Resolves
Sep 12, 2026

Depth of the order book and volume

Trust breakdown

70/100 · Medium

Reasonably supported. Generally reliable, with minor caveats. Main caveat: limited history.

  • Liquidity anchor+57
  • Price steadiness+22
  • Limited history-8
Trust score70 / 100
How these scores work →
View on Polymarket

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

Polymarket$1.5M 24h

Will the Fed decrease interest rates by 50+ bps after the September 2026 meeting?

0%YESTrust 92
Polymarket$126.3K 24h

Will the Fed increase interest rates by 25 bps after the September 2026 meeting?

31%YESTrust 86
Polymarket$514.1K 24h

Fed rate hike in 2026?

56%YESTrust 77
Polymarket$178K 24h
Macro / Fed
Politics
AI / Tech
Geopolitics

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. ProbCast is not a betting platform, exchange, or broker and does not provide buy or sell recommendations. Intended for users 18+; availability of prediction-market activity varies by jurisdiction. Venue data is aggregated from third parties and may be delayed or inaccurate. See our Terms of Use.

Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

© 2026 ProbCast · [email protected]