Table:
0
A
B
C
D
E
F
1
Year
Drivers
Team
Duration/Distance
Race Title
Championship
2
1948
Frank Griswold
Frank Griswold
mi (km)
Grand Prix Watkins Glen
Non-championship
3
1949
Miles Collier
Collier Bros.
mi (km)
Grand Prix Watkins Glen
Non-championship
4
1950
Erwin Goldschmidt
Alfred Goldschmidt
mi (km)
Sports Car Grand Prix of Watkins Glen
Non-championship
5
1951
Phil Walters
Briggs Cunningham
mi (km)
Sports Car Grand Prix of Watkins Glen
SCCA National Sports Car Championship
6
1952
Briggs Cunningham
Briggs Cunningham
mi (km)†
Sports Car Grand Prix of Watkins Glen
SCCA National Sports Car Championship

Questions and formulas:
Question: Which race happened in 1948?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1=1948),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,A2:A6=1948),5))
Level: medium
Question: Was the Grand Prix Watkins GLen that Miles Collier raced in before 1952 a championship?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(A1<1952)*(E1="grand prix watkins glen")*(B1="miles collier")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,(A2:A6<1952)*(E2:E6="grand prix watkins glen")*(B2:B6="miles collier")),6))
Level: medium
Question: Who drove in races in 1949?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1=1949),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,A2:A6=1949),2))
Level: medium