Katie Boulter insists her newfound stardom will not derail her determination for more grass court success. Boulter, 26, has rapidly emerged as the golden girl of British tennis after clinching her maiden WTA title in Nottingham and kicks off her Wimbledon campaign against Australian Daria Saville this afternoon. Ad The nation's new No.1 has spearheaded a red-hot summer for Britain's female stars after toppling Jodie Burrage in an all-British East Midlands final and also reaching the last four – along with Katie Swan and Lily Miyazaki – in Surbiton the week before.