Table:
0
A
B
C
D
E
1
Date
Tournament
Surface
Opponent
Score
2
13 August 2007
Pesaro , Italy
Clay
Stephanie Vogt
6–2, 2–6, 6–1
3
21 August 2007
Maribor , Slovenia
Clay
Tereza Hladíková
4–6, 6–1, 4–1 ret.
4
4 February 2008
Mallorca , Spain
Clay
Inés Ferrer Suárez
6–3, 6–1
5
11 February 2008
Mallorca 2, Spain
Clay
Stephanie Vogt
4–6, 6–1, 6–3
6
13 April 2009
Civitavecchia , Italy
Clay
Andrea Petkovic
6–2,6–4
7
4 May 2009
Zagreb , Croatia
Clay
Maša Zec Peškirič
7–5, 6–2
8
8 June 2009
Zlín , Czech Republic
Clay
Zuzana Kučová
6–3, 6–1
9
8 June 2009
Cuneo , Italy
Clay
Varvara Lepchenko
6–1, 6–2
10
8 February 2010
Cali , Colombia
Clay
Mariana Duque-Marino
6–4, 5–7, 6–2
11
21 July 2013
Olomouc , Czech Republic
Clay
Katarzyna Piter
6–0, 6–3

Questions and formulas:
Question: Who was the opponent in the mallorca 2, spain tournament?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="mallorca 2, spain"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,B2:B11="mallorca 2, spain"),4))
Level: medium
Question: When was varvara lepchenko the opponent?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="varvara lepchenko"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,D2:D11="varvara lepchenko"),1))
Level: medium