Tennis

Guo/Mladenovic vs Hsieh/Ostapenko: who will win?

>99% say Guo/Mladenovic wins

Up 62 points today.

Match time has passed. Waiting for the official result.

If postponed, it can stay open until Nov 23, 2026.

Each share pays $1 if it happens, so a price over 99¢ means more than a 99% chance.

Research, not financial advice. Prices from Polymarket’s international site, not available in the US. Sports event contracts are restricted or under legal challenge in several US states. Check your state’s law and the venue’s terms.

The short version

Guo/Mladenovic and Hsieh/Ostapenko play a tennis match at the WTA Finals Doubles, Group 1 (Doubles), scheduled for November 9, 2026 at 7:30 PM .

Possible results

Guo/MladenovicGuo/Mladenovic wins and moves on.>99%
What has to happen
The team of Guo/Mladenovic advances against Hsieh/Ostapenko.
Hsieh/OstapenkoHsieh/Ostapenko wins and moves on.<1%
What has to happen
The team of Hsieh/Ostapenko advances against Guo/Mladenovic.

The one trap

If the match is canceled, ends in a tie, or still has no winner by November 23, 2026, the market settles 50-50 and every share pays 50¢.

See all fine print

If a team pulls out before the match starts (a walkover), the market settles 50-50.
The official result comes from the WTA Tour. Trusted news reports can also be used.

Price chart

Guo/Mladenovic >99%Hsieh/Ostapenko <1%

-Yes chance

View rules on Polymarket (international site, not available to US residents)

Show details for experienced traders

The details

Rule note: the official resultSettled by WTA official

Fine-print risk

Low (10/100)

settles on the condition as written

Official source: settlement runs on WTA official results; credible reporting as a last resort. Posts the final result after the game. No recorded moves for this market yet.
Fine print: Settles on the official final result as played. Cancellations follow the stated fallback. Deadline: Mon, Nov 9, 2026, 7:30 PM ET.

Source named: WTA official (not a tracked official feed, no release history)

Standardized read of public order book, official-source and contract-rule data, identical for every viewer. It describes the data and is not a recommendation. The venue’s published rules control settlement.

Key lines from the rules (Polymarket)

“The primary resolution source will be official information from the WTA Tour.”
“If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 23, 2026, 11:59…”
“If the match begins but is not completed, and one team advances due to the opponent's retirement, default, or disqualification, this market will resolve to…”

View rules on Polymarket (international site, not available to US residents)

Big trades across all markets

Get notified when Pro opens.

One email when Pro opens, plus occasional product news. Unsubscribe anytime. Never shared or rented.