Table:
0
A
B
C
D
E
F
1
Outcome
Date
Tournament
Surface
Opponent
Score
2
Runner–up
20 April 2007
Hvar
Clay
Karolina Jovanović
1–6 4–6
3
Winner
14 May 2007
Michalovce
Clay
Katarzyna Piter
2–6 6–3 6–4
4
Runner–up
25 May 2008
Galați
Clay
Valentina Sulpizio
2–6 6–7(2)
5
Runner–up
10 August 2008
Hechingen
Clay
Maša Zec Peškirič
6–3 6–7(1) 3–6
6
Runner–up
7 September 2008
Maribor
Clay
Maša Zec Peškirič
2–6 6–7(6)
7
Runner–up
29 March 2009
La Palma
Hard
Anastasija Sevastova
6–4 1–6 1–6
8
Runner–up
5 June 2009
Pozoblanco
Hard
Angelique Kerber
3–6 4–6
9
Runner–up
6 June 2010
Brno
Clay
Zuzana Ondrášková
3–6 6–4 2–6
10
Runner–up
26 September 2010
Bucharest
Clay
Mădălina Gojnea
4–6 4–6
11
Winner
18 June 2012
Alkmaar
Clay
Janina Toljan
6–3 6–4
12
Winner
8 July 2012
Denain
Clay
Michaela Hončová
6–2 1–6 6–2
13
Runner–up
30 June 2013
Zlín
Clay
Melanie Klaffner
3–6 2–6
14
Winner
28 July 2013
Les Contamines-Montjoie
Clay
Clothilde de Bernardi
7–5 6–7(3) 6–3
15
Winner
18 August 2013
Craiova
Clay
Alberta Brianti
7–5 3–6 6–4
16
Runner–up
15 September 2013
Sofia
Clay
Patricia Mayr-Achleitner
2–6 6–1 3–6
17
Runner–up
26 October 2013
Herzliya
Hard
Yuliya Beygelzimer
3–6, 6–4, 2–5, ret.

Questions and formulas:
Question: what is the date of the tournament in michalovce
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="michalovce"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F17,C2:C17="michalovce"),2))
Level: medium