Table:
0
A
B
C
D
E
F
G
1
Rank
Fastest time (s)
Wind (m/s)
Athlete
Nation
Date
Location
2
1
10.88
+2.0
Marlies Göhr
East Germany
1 July 1977
Dresden
3
2
10.89
+1.8
Katrin Krabbe
East Germany
20 July 1988
Berlin
4
3
11.03
+1.7
Silke Gladisch-Möller
East Germany
8 June 1983
Berlin
5
3
11.03
+0.6
English Gardner
United States
14 May 2011
Tucson
6
5
11.04
+1.4
Angela Williams
United States
5 June 1999
Boise
7
6
11.07
+0.7
Bianca Knight
United States
27 June 2008
Eugene
8
7
11.08
+2.0
Brenda Morehead
United States
21 June 1976
Eugene
9
8
11.11
+0.2
Shakedia Jones
United States
2 May 1998
Westwood
10
8
11.11
+1.1
Joan Uduak Ekah
Nigeria
2 July 1999
Lausanne
11
10
11.12
+2.0
Veronica Campbell-Brown
Jamaica
18 October 2000
Santiago
12
10
11.12
+1.2
Alexandria Anderson
United States
22 June 2006
Indianapolis

Questions and formulas:
Question: Nigeria competed on July2, 1999.
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,E1="Nigeria"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G12,E2:E12="Nigeria"),6))
Level: medium
Question: Nigeria had the fastest time once.
Formula: SUMIFS(B1,E1,"Nigeria")
Formula2: SUMIFS(B2:B12,E2:E12,"Nigeria")
Level: easy