Set 1 Winner: Sakamoto vs Gaubas
100% implied probability — Gaubas leads
Resolution date: April 28, 2026 at 9:00 AM UTC
Event cluster: Madrid Open, Qualification: Rei Sakamoto vs Vilius Gaubas
Topic: Games
24-hour volume: $954
Total liquidity: $0
Resolution criteria: This market refers to the tennis match between Rei Sakamoto and Vilius Gaubas in the Madrid Open, Qualification, originally scheduled for April 21, 2026 at 5:00AM ET. This market will resolve to “Sakamoto” if Rei Sakamoto wins the first set. It will resolve to “Gaubas” if Vilius Gaubas wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official ATP match statistics.
Related markets from this event:
Last refreshed: April 21, 2026 at 5:05 PM UTC
Set 1 Winner: Sakamoto vs Gaubas resolved Gaubas at 100% on Polymarket. Settled Apr 28, 2026. Part of Madrid Open, Qualification: Rei Sakamoto vs Vilius Gaubas. $954 total volume traded.
100¢
Archived metadata only

Outcome
Gaubas
Apr 28, 2026
Final
100¢
100%
Archive price path
Apr 20, 2026 to Apr 21, 2026
Start
50¢
End
0.05¢
7d Range
0.05¢ to 72.5¢
Archive overview
Outcome
Gaubas
Total volume
$954
Settlement logic
This market refers to the tennis match between Rei Sakamoto and Vilius Gaubas in the Madrid Open, Qualification, originally scheduled for April 21, 2026 at 5:00AM ET. This market will resolve to “Sakamoto” if Rei Sakamoto wins the first set. It will resolve to “Gaubas” if Vilius Gaubas wins the first set. If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50. Resolution will be based on official ATP match statistics.
Same event markets
Source
Polymarket market archive
Last refreshed
April 21, 2026 at 5:05 PM UTC
Ranking logic
/de/research/methodologyData caveat
Thin books and wide spreads can distort price precision
Liquidity
$0
Resolved
Apr 28, 2026