Table:
0
A
B
C
D
E
F
1
Outcome
Date
Tournament
Surface
Opponent
Score
2
Runner-up
19 May 2009
Antalya , Turkey
Clay
Amanda Carreras
6–7 (7–9) , 7–6 (7–2) , 4–6
3
Winner
27 July 2009
Tampere , Finland
Clay
Anna Orlik
6–7 (2–7) , 7–6 (7–3) , 6–4
4
Runner-up
2 July 2012
Istanbul , Turkey
Hard
Melis Sezer
6–7 (5–7) , 4–6
5
Winner
23 July 2012
Tampere , Finland
Clay
Alena Tarasova
7–5, 6–2
6
Winner
22 October 2012
Stockholm , Sweden
Hard (i)
Emily Webley-Smith
6–2, 6–1

Questions and formulas:
Question: What is the tournament on 22 October 2012?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="22 october 2012"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,B2:B6="22 october 2012"),3))
Level: medium
Question: What is the date of the tournament with Alena Tarasova as the opponent?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="alena tarasova"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,E2:E6="alena tarasova"),2))
Level: medium