Timofeeva broke for 2-3 and again for 4-3 in a deuce game, then held for 6-4 to take the set despite Kostović's hold for 4-5.
Breaks traded: Kostović for 1-1, Timofeeva for 1-0, 2-1, 4-1 and 6-1. Timofeeva took it 6-1.