Table:
0
A
B
C
D
E
F
1
Tournament
Surface
Week
Winner
Finalist
Semifinalists
2
Indian Wells
Hard
March 13
Palmer / O'Brien 6-4, 7-6(5)
Haarhuis / Stolle
Federer / Hrbatý W. Ferreira / Kafelnikov
3
Key Biscane
Hard
March 20
Woodbridge / Woodforde 6-3, 6-4
Damm / Hrbatý
O'Brien / Palmer Galbraith / MacPhie
4
Monte Carlo
Clay
April 17
W. Ferreira / Kafelnikov 6-3, 2-6, 6-1
Haarhuis / Stolle
O'Brien / Palmer Escudé / Federer
5
Rome
Clay
May 8
Damm / Hrbatý 6-4, 4-6, 6-3
W. Ferreira / Kafelnikov
Lapentti / Ríos Bertolini / Brandi
6
Hamburg
Clay
May 15
Woodbridge / Woodforde 6-7(4) 6-4 6-3
Arthurs / Stolle
Hewitt / Rafter Eagle / Florent
7
Toronto
Hard
July 31
Lareau / Nestor 6-3 7-6(3)
Eagle / Florent
Johnson / Norval Björkman / Mirnyi
8
Cincinnati
Hard
August 7
Woodbridge / Woodforde 7-6(6) 6-4
E. Ferreira / Leach
Novák / Rikl Lareau / Nestor
9
Stuttgart
Carpet (i)
October 30
Novák / Rikl 3-6, 6-3, 6-4
Johnson / Norval
Arthurs / Zimonjić Björkman / Prinosil
10
Paris
Carpet (i)
November 13
Haarhuis / Nestor 6-4, 7-5
Kulti / Mirnyi
García / Nargiso O'Brien / Palmer

Questions and formulas:
Question: What is the Semifinalists that has a Tournament of Cincinnati?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="cincinnati"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10="cincinnati"),6))
Level: medium