What a disappointing day

I had a very disappointing day. Here an overview of my results:
I stuck to my plan but there where many upsets and the day produced a big loss of 32,37€ according to my stakes.

Benneteau v Karlovic 3-6, 6-4, 7-6
Sela v Robredo 7-6, 6-1
Chela v Minar 3-6, 7-5, 3-6
Ancic v Murray 6-2, 2-6, 7-6
Soderling v Wawrinka 3-6, 6-4, 6-3
Lisicki v Koryttseva 6-1, 7-5
Garbin v Bammer 2-6, 2-6
Petrova v Zheng Petrova retired bet void
Knapp v Safarova 6-3, 5-7, 0-6
Schiavone v Cibulkova 6-3, 4-6, 4-6
Sugiyama v M. Garrigues 6-2, 6-3
Peng v Mauresmo 4-6, 6-4, 6-7

won: 19
lost: 11
strike rate: 63,33%
avg win odds: 1,64
profit: -4,13€