India's Siddhant Banthia and his Bulgarian partner Alexander Donski secured the doubles title at the Oeiras 4 2026 ATP Challenger 100 tournament in Portugal on Saturday.
The unseeded Indo-Bulgarian pair defeated Portugal’s Tiago Pereira and Spain’s David Vega Hernandez 6-3, 6-2 in the final, winning the match in one hour and three minutes on the clay court, according to Olympics.com.
Banthia and Donski encountered a late challenge in the opening set. After earning a crucial break in the fourth game, they survived a breakpoint while serving at 5-3 and ultimately closed out the set in 32 minutes. Building on this momentum, they broke serve in the third and seventh games of the second set to complete the victory.
This title represents Siddhant Banthia’s second ATP Challenger doubles crown of the season and third overall, all achieved alongside Alexander Donski. It was also the fourth doubles title of Donski’s career.
Earlier in the year, Banthia and Donski won the doubles title at the Delhi Open ATP Challenger 75 tournament, defeating India’s Niki Poonacha and Thailand’s Pruchya Isaro in the final.
During their campaign in Portugal, Banthia and Donski advanced past the opening round via a walkover. They then overcame Romania’s Alexandru Jecan and Bogdan Pavel 6-4, 6-4 in the quarter-finals and dominated second seeds Gonzalo Escobar of Ecuador and Mariano Kestelboim of Argentina 6-1, 6-3 in the semi-finals.