Beygelzimer and Savchuk were up a set and 5-3 on Klara Koukalova and Monica Niculescu on Sunday at the BNP Paribas Katowice Open before the favorites won four straight games to force a match tie-break. But the Ukrainian pairing regained their composure and secured the 64 57 107 triumph.
"I think we played against very good opponents today," Beygelzimer said. "This gives us a bit of confidence for the future, knowing we can beat players like this. And of course, it's a great feeling to win the final. We're very happy."
As challenging as the final was, Beygelzimer and Savchuk's semifinal victory over Klaudia Jans-Ignacik and Raluca Olaru on Saturday was even more so, as they overcame three match points in the match tie-break.
This was Beygelzimer and Savchuk's first WTA doubles title as a duo, with Beygelzimer now having three as an individual and Savchuk two.
"We have played together a few times and had won an ITF title, but never a WTA one," Savchuk said. "We're really happy to end the week like this, especially after yesterday's crazy match."
Meanwhile, at the Claro Open Colsanitas on Saturday against Vania King and Chanelle Scheepers, Arruabarrena and Garcia let a 5-2 first set lead slip away before winning it in a tie-break and from 4-3 down in the second set won three straight games for a 76(5) 64 triumph.
Arruabarrena and Garcia's first event together was a memorable one, in that they became the first team since Chan Chin-Wei and Xu Yi-Fan in Seoul last September to defeat the Top 3 seeds en route to a WTA doubles title.
This was Arruabarrena's second WTA doubles title, having also won Katowice exactly a year ago, and Garcia's first. The Frenchwoman also beat Jelena Jankovic on Sunday for her first WTA singles title, making her the first player since Serena Williams at the Olympics in August 2012 to capture the singles and doubles at the same WTA-level tournament.