TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva
polymarket

What is the result of Mcadoo/Osborne vs Barros/Silva?

Volume:
$1,158

Completed Match

 - Polymarket

Completed Match - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 17, 2026

Closed: Sep 17, 5:16 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Completed Match

View
100%
97%
Yes 100¢No 0¢
0.1¢
N/A
$1,100
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva

0%
90%
Yes 0¢No 100¢
—
N/A
$58
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 1 Winner

100%
Yes 100¢No 0¢
19¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 2 Winner

0%
100%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Total Sets: O/U 2.5

100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 1 O/U 8.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 1 O/U 9.5

0%
81%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 1 O/U 10.5

0%
81%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 2 O/U 8.5

100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 2 O/U 9.5

100%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set 2 O/U 10.5

100%
1%
Yes 100¢No 0¢
3¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Match O/U 21.5

100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Match O/U 22.5

100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Match O/U 23.5

0%
100%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set Handicap +/-1.5

0%
100%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Sao Paulo Open (Doubles): Mcadoo/Osborne vs Barros/Silva Set Handicap +/-1.5

0%
81%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 16

Description

This market refers to the doubles tennis match between Mcadoo/Osborne and Barros/Silva in the Sao Paulo Open, originally scheduled for September 15, 2026 at 9:00AM ET. This market will resolve to 'Mcadoo/Osborne' if the team of Mcadoo/Osborne advances against Barros/Silva. This market will resolve to 'Barros/Silva' if the team of Barros/Silva advances against Mcadoo/Osborne. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 29, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Polymarket

This market refers to the doubles tennis match between Mcadoo/Osborne and Barros/Silva in the Sao Paulo Open, originally scheduled for September 15, 2026 at 9:00AM ET. This market will resolve to 'Mcadoo/Osborne' if the team of Mcadoo/Osborne advances against Barros/Silva. This market will resolve to 'Barros/Silva' if the team of Barros/Silva advances against Mcadoo/Osborne. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 29, 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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances. If the match ends in a walkover (a team withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.

Frequently asked questions

On Polymarket, the dashboard for the Sao Paulo Open doubles match tracks the current odds, price history, and 24-hour trading volume. Currently, the volume is $58, and the total volume for this market is $1,158. You can see how the implied probability of each outcome changes over time with the price chart. The dashboard provides a real-time view of where traders are placing their bets on who will win this exciting match.

Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks set their lines based on their own models and need to account for profit margins, while this market is driven purely by traders’ beliefs. If a significant discrepancy exists, arbitrage opportunities may arise, where traders can profit by betting on both the prediction market and a sportsbook. It’s common to see this market adjust rapidly to new information, potentially leading to more accurate probabilities than those offered by sportsbooks.

On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly reflects the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price fluctuates, providing a dynamic assessment of the potential result. The current price indicates what traders collectively believe is the likelihood of Mcadoo/Osborne winning the Sao Paulo Open doubles match.

This market resolves around Sep 22, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official results published by the tournament organizers for the Sao Paulo Open doubles match between Mcadoo/Osborne and Barros/Silva. The winning pair, as declared by the official tournament results, will determine the outcome of this market. Traders will be able to claim their winnings once the resolution is finalized on Polymarket.

Several factors could influence this market before resolution. Any news regarding player injuries or changes in team composition would likely cause significant movement. Updates on player form, recent match results, or even weather conditions at the tournament could also shift the odds. Unexpected upsets in other matches within the Sao Paulo Open could also indirectly impact trader sentiment. Ultimately, any information that alters perceptions of Mcadoo/Osborne and Barros/Silva’s chances of winning will likely be reflected in the price of shares on Polymarket.