Britain's Johanna Konta and Dan Evans have progressed to the second round at the Sydney International.
Sixth seed and British number one Konta beat Australian Arina Rodionova 6-3 6-4 in her opening match of the tournament.
Unseeded Evans won 6-3 4-6 6-3 against Thiago Monteiro of Brazil.
But British number two Kyle Edmund went out after losing 7-6 (7-3) 7-6 (7-5) against Australian qualifier Matthew Barton, who sits 153 places below the world number 45 in the rankings.