Current implied probability
Tiafoe Set 1 O/U 8.5 80%Leader of 26 outcomes
Market quality
≤74 / 100
Medium quality24h Volume
$5.2K
Liquidity
$385.3K
High liquiditySpread
1.0 pt
Tight spreadComments
0
Market data
Updated 11 minutes ago
Sep 3, 26, 5:05 AMSep 11, 26, 3:00 PM
Trends
Rules
This market refers to the tennis match between Valentin Vacherot and Frances Tiafoe in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET.
- This market will resolve to 'Valentin Vacherot' if Valentin Vacherot advances against Frances Tiafoe.
- This market will resolve to 'Frances Tiafoe' if Frances Tiafoe advances against Valentin Vacherot.
- If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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.
Prediction Source Comparison
Open markets
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KALSHIZverev vs Halys
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- Quentin Halys+9.0pt25.7%
- Total Vol
- $13.5M
- 24h Vol
- $13M
KALSHISt. Louis vs Los Angeles D
- St. Louis+30.0pt57.4%
- Los Angeles D-29.0pt42.6%
- Total Vol
- $6.1M
- 24h Vol
- $5.8M
KALSHIOmega European Masters Winner
- Angel Ayora Fanegas+9.0pt10%
- Eugenio Lopez-Chacarra+4.5pt7.3%
- Thriston Lawrence+5.2pt6.4%
+97 more outcomes
KALSHIUAB vs Illinois
- Illinois+2.0pt99%
- UAB-3.0pt1%
- Total Vol
- $3.3M
- 24h Vol
- $3.2M
KALSHIA's vs Seattle
- A's+37.0pt72.3%
- Seattle-37.0pt27.7%
- Total Vol
- $3.3M
- 24h Vol
- $3.1M
KALSHIIdaho vs Utah
- Utah99%
- Idaho-1.0pt1%
- Total Vol
- $2.8M
- 24h Vol
- $2.5M
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Frequently asked questions
- What are the current odds for US Open ATP: Valentin Vacherot vs Frances Tiafoe?
- Polymarket prices Tiafoe Set 1 O/U 8.5 at 80% as of September 4, 2026.
- When does US Open ATP: Valentin Vacherot vs Frances Tiafoe resolve?
- US Open ATP: Valentin Vacherot vs Frances Tiafoe is scheduled to resolve on September 11, 2026.
- How is US Open ATP: Valentin Vacherot vs Frances Tiafoe settled?
- Polymarket settles this market as follows: This market refers to the tennis match between Valentin Vacherot and Frances Tiafoe in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET.
- Where else is US Open ATP: Valentin Vacherot vs Frances Tiafoe listed?
- The same question is also listed on Futuur, Limitless, Gemini.