Tuesday
At Armeec Arena
Sofia, Bulgaria
Purse: $750,000
Surface: Hard-Indoor
Round Robin
Singles
Group Serdika
Flavia Pennetta (3), Italy, def. Alize Cornet (6), France, 6-1, 6-2.
Standings: Pennetta, 1-0 (2-0); Ekaterina Makarova, 0-0 (0-0); Garbine Muguruza, 0-0 (0-0); Cornet, 0-1 (0-2).
Group Sredets
Dominika Cibulkova (2), Slovakia, def. Tsvetana Pironkova (8), Bulgaria, 6-3, 7-6 (6).
Carla Suarez Navarro (5), Spain, def. Andrea Petkovic (4), Germany, 6-0, 6-4.
Standings: Suarez Navarro, 1-0 (2-0); Cibulkova, 1-0 (2-0); Pironkova, 0-1 (0-2); Petkovic, 0-1 (0-2).