Kyle Edmund and Dan Evans both won ATP Challenger events on Sunday as they aim to make Great Britain's squad for the Davis Cup final later this month.
Edmund beat Carlos Berlocq 6-0 6-4 to claim the Buenos Aires Challenger clay court tournament, while Evans won on a hard court in Knoxville, Tennessee.
GB face Belgium on clay in the Davis Cup final in Ghent from 27-29 November.
Edmund's victory could be significant with GB captain Leon Smith set to name his team on Tuesday.
The victory could also move the 20-year-old Edmund back into the world's top 100.
Evans, who won the Knoxville Challenger title by beating American Frances Tiafoe 5-7 6-1 6-3 in the final, was selected ahead of James Ward and Edmund in the singles for GB's Davis Cup semi-final win over Australia.