Great Britain moved a step closer to the 2022 Billie Jean King Cup Finals after Katie Boulter clinched victory in their play-off tie against Mexico.
With Britain leading 2-1 in the best-of-five tie, 24-year-old Boulter won 6-3 6-1 against Giuliana Olmos.
Anne Keothavong’s team progress to next year’s qualifiers, where another win will put them in the 12-team finals.
“We came in with high expectations and the players delivered,” said Keothavong.
“It is a special feeling at this stage of the competition to get a win. As a team, we haven’t been in this position too many times.
“I’m proud of all of them to get the job done.”
After Britain earned a 2-0 lead on Friday, Heather Watson had the chance to secure victory at the first time of asking earlier on Saturday.
The British number two lost 6-3 7-6 (7-1) against Mexico’s Marcela Zacarias, leaving Boulter with the task of beating Olmos to avoid the tie going to the deciding doubles rubber.
Like she did against Zacarias on Friday, Boulter grew stronger as the match wore on and eventually ran out a comfortable winner.
The Billie Jean King Cup is the new name for the Fed Cup, the women’s international team event that Britain have finished runners-up in four times but have never won.
Watson unable to clinch victory at first opportunity
With Johanna Konta missing through injury, Watson is leading the British hopes in a home tie which they were expected to win comfortably.
The experienced 28-year-old won her opening match against Olmos on Friday in straight sets, but found the going much harder against Zacarias, who is ranked 206th in the world.
Watson lost her opening two service games and, after recovering to level at 3-3, took just one of the next 13 points as a consistent Zacarias won Mexico’s first set of the tie.
Landing only 48% of first serves and making 21 unforced errors highlighted Watson’s struggles.
She improved her level at the start of the second set, with team-mates Boulter, Katie Swan and Jodie Burrage aiming to inspire her with plenty of vocal support from the sidelines.
Service games for the Briton rarely came under threat and, after breaking for a 3-2 lead, she had the chance to serve out the set to take the match into a decider.
However, Watson faltered to lose serve for 5-5 and her confidence appeared to sap as Zacarias seized control again to earn only her second career win over a player ranked inside the top 100.
“I definitely didn’t find my game. I just never got going,” said Watson.
“I was positive throughout and was thinking, ‘It’ll turn, I’ll start to find my game’, but I just didn’t.”
Svitolina seals Ukraine’s progress
Elsewhere, world number five Elina Svitolina clinched victory for Ukraine with a hard-fought 6-2 4-6 7-6 (7-3) win against Japan’s Yuki Naito.
Svitolina fought back from break down four times in the deciding set before dominating the tie-break to put her nation into a 3-0 lead.
Canada also progressed courtesy 3-0 when 18-year-old Leylah Fernandez took her sixth match point – which came after a brief delay because of floodlight failure – to complete a 3-6 6-3 6-4 win against Serbia’s Nina Stojanovic.
Latvia will join them in the qualifiers after beating India.