Maritime Radio’s Clive Richardson reports, from the Queen Elizabeth Olympic Park.
Great Britain ended a 26-year wait for Fed Cup promotion when Katie Boulter came from behind to beat Zarina Diyas to seal a play-off win over Kazakhstan.
British number one Johanna Konta had put GB one win away from World Group II with a stunning comeback in a 4-6 6-2 7-5 win over Yulia Putintseva.
Boulter trailed by a set and a break – and was troubled by a back problem – before beating Diyas 6-7 (1-7) 6-4 6-1.
The win put Britain 3-1 up in the best-of-five tie at London’s Copper Box.