Russia's Elena Vesnina staged a remarkable comeback to beat Svetlana Kuznetsova 6-7 (6-8) 7-5 6-4 in a thrilling BNP Paribas Open final.
Eighth seed Kuznetsova edged a marathon first set lasting 71 minutes by winning a tie-break at Indian Wells.
Vesnina, the 14th seed, trailed 4-1 in the second set before winning four games in a row to force a deciding set.
She trailed 4-2 in that set but again won four successive games to win a match lasting just over three hours.
Vesnina, 30, was playing in her first final at a 'Premier Mandatory' event - those at Indian Wells, Key Biscayne, Madrid, and Beijing.