US OPEN WTA • ROUND OF 64 • PLAYED SEP 2, 2026
Marta Kostyuk vs Sloane Stephens: Result & Final Score
88%people predicted · before the match12%
Settled at 100% · $265.3K traded across 16 markets
FINAL · Kostyuk 6-1 7-5
FINALSEP 2, 2026final score
Match Summary
Marta Kostyuk beat Sloane Stephens 6-1 7-5. Priced at 88% before the match.
No match statistics on record for this one.
Players
Ranking, season record, form and the basics side by side.
First meeting on record · no completed tour-level matches between them
No. 11
World ranking
–
3,980
Ranking points
–
36–9
2026 record
15–17
24
Age
33
175 cm
Height
170 cm
🇺🇦 Ukraine
Country
United States 🇺🇸
2016
Turned pro
2008
Past Match-ups
No previous meetings between these players on record.
News & Insights
No headlines about this match from our sources yet – stories land here as soon as they are published.
FAQ
What does 100% for Marta Kostyuk mean?
It is the live Polymarket price for a share that pays out if Marta Kostyuk beats Sloane Stephens. Read it as the market’s probability estimate: 100 in 100. It moves with every trade.
How did this market settle?
The market closed once the result was official and paid $1 a share to everyone holding the winner. The percentages on this page are the closing prices.
How much was traded on this match?
$265.3K has been traded across all 16 markets on this event so far.
Where do these numbers come from?
Straight from Polymarket’s public market data – Predictionist reads the same order book traders use. We refresh this page every hour and never adjust the numbers.
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