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2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

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Kalshi:

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M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim
polymarket

What is the result of Goncalo Da Rosa Castro vs Tiago Valentim?

Volume:
N/A

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim

 - Polymarket

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim - Polymarket

1W

News

Positive

Negative

Neutral

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Vol.

·

Resolved Sep 7, 2026

Closed: Sep 7, 10:16 AM EST

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Polymarket

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim

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

Completed Match

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 1 Winner

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 2 Winner

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Total Sets: O/U 2.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 1 O/U 8.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 1 O/U 9.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 1 O/U 10.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 2 O/U 8.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 2 O/U 9.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set 2 O/U 10.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Match O/U 21.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Match O/U 22.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Match O/U 23.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set Handicap +/-1.5

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

M25 Sintra: Goncalo Da Rosa Castro vs Tiago Valentim Set Handicap +/-1.5

0%
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 tennis match between Goncalo Da Rosa Castro and Tiago Valentim in the M25 Sintra, Qualifying, originally scheduled for September 7, 2026 at 5:00AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Tiago Valentim. This market will resolve to 'Tiago Valentim' if Tiago Valentim advances against Goncalo Da Rosa Castro. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 21, 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. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Polymarket

This market refers to the tennis match between Goncalo Da Rosa Castro and Tiago Valentim in the M25 Sintra, Qualifying, originally scheduled for September 7, 2026 at 5:00AM ET. This market will resolve to 'Goncalo Da Rosa Castro' if Goncalo Da Rosa Castro advances against Tiago Valentim. This market will resolve to 'Tiago Valentim' if Tiago Valentim advances against Goncalo Da Rosa Castro. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 21, 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. The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.

Frequently asked questions

Prediction market odds often differ from those found at traditional sportsbooks due to the wisdom of the crowd effect. Sportsbooks set lines based on their own analysis and incorporate a profit margin, while this market’s odds are determined by traders who are incentivized to accurately predict the outcome. 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 reflect more accurate probabilities as more information becomes available and more traders participate.

This market resolves around Sep 14, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M25 Sintra tennis match between Goncalo Da Rosa Castro and Tiago Valentim. The player who wins the match will be declared the winner of this market. Any potential disputes or challenges to the official result will be considered, but the final decision will rely on widely accepted and verifiable sources of information regarding the match outcome.

Several signals could influence trading activity and shift the odds in this market. News regarding player injuries, changes in playing conditions (like weather), or updates on player form could all impact trader sentiment. Unexpected results in earlier rounds of the tournament could also lead to reassessments of player probabilities. Furthermore, significant trading volume from informed traders could indicate new information or a shift in expectations, causing the price of shares to move accordingly. Monitoring these factors could provide insights into potential market movements.