Table:
0
A
B
C
D
E
F
1
Tournament
Surface
Week
Winner and score
Finalist
Semifinalists
2
Indian Wells
Hard
March 11
Michael Chang 7–5, 6–1, 6–1
Paul Haarhuis
Goran Ivanišević Marcelo Ríos
3
Key Biscane
Hard
March 18
Andre Agassi 3–0 Ret.
Goran Ivanišević
Arnaud Boetsch Pete Sampras
4
Monte Carlo
Clay
April 22
Thomas Muster 6–3, 5–7, 4–6, 6–3, 6–2
Albert Costa
Cédric Pioline Marcelo Ríos
5
Hamburg
Clay
May 6
Roberto Carretero 2–6, 6–4, 6–4, 6–4
Àlex Corretja
Yevgeny Kafelnikov Marcelo Ríos
6
Rome
Clay
May 13
Thomas Muster 6–2, 6–4, 3–6, 6–3
Richard Krajicek
Albert Costa Wayne Ferreira
7
Cincinnati
Hard
August 5
Andre Agassi 7–6(4), 6–4
Michael Chang
Thomas Enqvist Thomas Muster
8
Toronto
Hard
August 19
Wayne Ferreira 6–2, 6–4
Todd Woodbridge
Marcelo Ríos Todd Martin
9
Stuttgart
Carpet (i)
October 21
Boris Becker 3–6, 6–3, 3–6, 6–3, 6–4
Pete Sampras
Jan Siemerink Michael Chang
10
Paris
Carpet (i)
October 28
Thomas Enqvist 6–2, 6–4, 7–5
Yevgeny Kafelnikov
Magnus Gustafsson Petr Korda
11
Hanover ( AWC )
Carpet (i)
November 18
Pete Sampras 3–6, 7–6(5), 7–6(4), 6–7(11), 6–4
Boris Becker
Richard Krajicek Goran Ivanišević

Questions and formulas:
Question: Which finalist played in the week of October 21?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="october 21"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,C2:C11="october 21"),5))
Level: medium
Question: On what surface did they play the match in the week of October 21?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="october 21"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,C2:C11="october 21"),2))
Level: medium
Question: Who was the finalist in the Monte Carlo Tournament?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="monte carlo"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,A2:A11="monte carlo"),5))
Level: medium