Table:
0
A
B
C
D
E
F
1
Date
Tournament
Surface
Tier
Opponent in the final
Score
2
September 15, 2002
Sofia
Clay
ITF $25k
Desislava Topalova
6–3, 4–6, 6–0
3
September 13, 2005
Tbilisi
Clay
ITF $10k
Manana Shapakidze
6–2, 6–1
4
November 28, 2005
Ramat Hasharon
Hard
ITF $10k
Sharon Fichman
6–3, 7–6 (7-4)
5
December 5, 2005
Ra'anana
Hard
ITF $10k
Tzipora Obziler
6–3, 7–5
6
May 8, 2006
Antalya-Belek
Clay
ITF $10k
Claire de Gubernatis
6–1, 7–5
7
July 31, 2006
Martina Franca
Clay
ITF $50k
Karin Knapp
6–3, 7–5
8
June 26, 2007
Padova
Clay
ITF $25k
Sandra Záhlavová
3–6, 6–1, 6–3
9
September 14, 2009
Naples
Clay
ITF $25k
Michaela Pochabová
6–2, 6–1
10
October 3, 2010
Tbilisi
Clay
ITF $25k
Tatia Mikadze
6–4, 3–6, 7–5
11
April 9, 2011
Pomezia
Clay
ITF $10k
Annalisa Bona
1–6, 6–2, 6–2

Questions and formulas:
Question: What surface was played on on October 3, 2010?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="october 3, 2010"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,A2:A11="october 3, 2010"),3))
Level: medium
Question: What was the tier versus Manana Shapakidze?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="manana shapakidze"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,E2:E11="manana shapakidze"),4))
Level: medium
Question: What was the score versus Michaela Pochabová?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="michaela pochabová"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,E2:E11="michaela pochabová"),6))
Level: medium
Question: Who was the opponent on May 8, 2006?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="may 8, 2006"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,A2:A11="may 8, 2006"),5))
Level: medium
Question: What was the tier versus Annalisa bona?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="annalisa bona"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,E2:E11="annalisa bona"),4))
Level: medium