Location:

Bediam Court, Gibraltar, GX11 1AA

TennisSao Paulo OpenMary Stoiana vs Claire Liu
SAO PAULO OPEN • ROUND OF 32 • HARD • SEP 15 · 13:00 UTC

Mary Stoiana vs Claire Liu: Prediction, Odds & H2H

45%people predict55%
Live Polymarket prices · $609 traded across 16 markets
Starts in

Players

Who comes in stronger: ranking, season record, form and the basics side by side.
First meeting on record · no completed tour-level matches between them
2026 record
18–12
LWL
Last 5 matches
WWWWW
23
Age
26
Height
170 cm
🇺🇸 United States
Country
United States 🇺🇸
Turned pro
2015

Past Match-ups

No previous meetings between these players on record.

What People Expect

Beyond the winner: the side markets on this match, in plain words.
How long does it go?
Straight sets

60%quoted, no trades yet
Who takes the first set?
Claire Liu

52%quoted, no trades yet
How many games in total?
Under 22.5

55%quoted, no trades yet

Market Leading outcome
Set 1 Winner: Mary Stoiana vs Claire Liu

Claire Liu 52% no trades
Set 2 Winner: Mary Stoiana vs Claire Liu

Claire Liu 54% no trades
Mary Stoiana vs. Claire Liu: Total Sets O/U 2.5

Under 2.5 60% no trades
Stoiana vs. Liu: Set 1 Games O/U 8.5

Under 64% no trades
Stoiana vs. Liu: Set 1 Games O/U 10.5

Over 54% no trades
Stoiana vs. Liu: Match O/U 22.5

Under 55% no trades
Set Handicap: Claire Liu (-1.5) vs Mary Stoiana (+1.5)

Mary Stoiana 66% no trades
8 more markets on this event have no quotes yet.

Live Odds

Prediction market probabilities from Polymarket, updated as market prices change.
Total Volume
$609
24h Volume
$609
7D
Mary StoianaMary Stoiana45%Claire LiuClaire Liu55%

25%50%75%Sep 13Sep 13Sep 13Sep 1345%55%

source: Polymarket
Every percentage on this page is market-implied: it is the live price of a share on Polymarket, not a Predictionist model or a tip. They move with every trade and this page refreshes every hour. A 70% favorite still loses about three times in ten.

Latest Match Updates

Key movements in the prediction market odds.
Sao Paulo Open: Mary Stoiana vs Claire Liu winner?SEP 14, 2026

Claire Liu is priced at 55% to beat Mary Stoiana at Sao Paulo Open, with Mary Stoiana at 45%. Claire Liu is the favorite, but Mary Stoiana is priced with a real shot. The price has held steady over the last 24 hours. Mary Stoiana has won 1 of the last 3 and Claire Liu has won 5 of the last 5. $609 has been traded on this match across 16 markets – set winners, totals and handicaps alongside the match winner. Prices are live Polymarket probabilities and move with every trade.

55%

• 0% 24H

News & Insights

No headlines about this match from our sources yet – stories land here as soon as they are published.

FAQ

What does 45% for Mary Stoiana mean?
It is the live Polymarket price for a share that pays out if Mary Stoiana beats Claire Liu. Read it as the market’s probability estimate: 45 in 100. It moves with every trade.
When does this market settle?
The market is scheduled to close around Sep 21, 2026 and resolves as soon as the match result is official. Winning shares pay $1 each.
How much money is on this match?
$609 has been traded across all 16 markets on this event so far, $609 of it in the last 24 hours.
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.

Sao Paulo Open: match winner?

$609 SEP 21, 2026

Match WinnerThe market resolves to the player who wins the match.
Mary StoianaMary Stoiana45.0%
Claire LiuClaire Liu55.0%

Trade on Polymarket

Live prices from Polymarket