Heather Watson and doubles partner Marina Erekovic came out on top of a topsy-turvy match with Natalie Grandin and Vladimira Uhlirova to make the final of the Bank of the West Classic in Stanford.
The British 20-year-old and New Zealander Erekovic won it on a super tie-break to finally beat the third seeds 7-5 6-7 (6/8) 10-7 in just over two hours.
The pair, who came back from 5-2 down in the second set and served for it at 6-5 up, will take on top seeds Jarmila Gajdosova and Vania King in the final.