Table:
0
A
B
C
D
E
F
1
Outcome
Date
Tournament
Surface
Opponent in the final
Score in the final
2
Winner
October 30, 1988
Baden , Switzerland ITF $10,000
Clay
Katarzyna Nowak
6–1, 6–1
3
Winner
December 4, 1988
Melbourne , Australia ITF $10,000
Hard
Xóchitl Escobedo
7–6 (7–3) , 6–2
4
Winner
May 28, 1989
Athens , Greece ITF $10,000
Clay
Dora Rangelova
6–1, 6–7, 6–1
5
Winner
July 16, 1989
Erlangen , Germany ITF $25,000
Clay
Wiltrud Probst
6–1, 2–6, 6–3
6
Winner
August 20, 1989
Budapest , Hungary ITF $25,000
Clay
Silke Frankl
6–4, 6–7, 6–0
7
Winner
July 8, 1990
Vaihingen , Germany ITF $25,000
Clay
Denisa Krajčovičová
6–3, 6–3
8
Runner-up
November 22, 1992
Nottingham , United Kingdom ITF $25,000
Carpet (I)
Elena Makarova
6–3, 2–6, 5–7
9
Runner-up
March 20, 1994
Reims , France ITF $25,000
Clay (I)
Catherine Mothes
1–6, 2–6
10
Winner
October 30, 1994
Jakarta , Indonesia ITF $50,000
Hard
Hiromi Nagano
6–4, 6–1
11
Winner
December 3, 1995
Limoges , France ITF $50,000
Hard
Paula Hermida
7–5, 6–3
12
Winner
February 25, 1996
Redbridge , United Kingdom ITF $25,000
Hard
Haruka Inoue
6–4, 6–4
13
Winner
March 3, 1996
Southampton , United Kingdom ITF $50,000
Carpet (I)
Isabelle Demongeot
6–3, 4–6, 6–4
14
Winner
April 21, 1996
Murcia , Spain ITF $75,000
Clay
Patty Schnyder
6–4, 6–3
15
Winner
March 29, 1998
Woodlands , CA, USA ITF $25,000
Hard
Anna Smashnova
2–6, 6–1, 7–5

Questions and formulas:
Question: What is the outcome on March 20, 1994?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="march 20, 1994"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,B2:B15="march 20, 1994"),1))
Level: medium
Question: What tournament had a hard surface on February 25, 1996?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="hard")*(B1="february 25, 1996")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,(D2:D15="hard")*(B2:B15="february 25, 1996")),3))
Level: medium
Question: What is the score in the final with a hard surface and is against Hiromi Nagano?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="hard")*(E1="hiromi nagano")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,(D2:D15="hard")*(E2:E15="hiromi nagano")),6))
Level: medium
Question: What is the total outcome for the clay surface on April 21, 1996?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="clay")*(B1="april 21, 1996")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,(D2:D15="clay")*(B2:B15="april 21, 1996")),1))
Level: medium