Table:
0
A
B
C
D
E
F
G
1
Round
Circuit
Date
Class A Winner
Class B Winner
Class C Winner
Class D Winner
2
1
Snetterton Motor Racing Circuit , Norfolk
14 April
John Love
Alan Hutcheson
None (no entries?)
Mike Parkes
3
2
Goodwood Circuit , West Sussex
23 April
Christabel Carlisle
Alan Hutcheson
None (no entries)
Graham Hill
4
3
Aintree Motor Racing Circuit , Liverpool
28 April
John Love
Alan Hutcheson
Nicky Byrne
Graham Hill
5
4
Silverstone Circuit , Northamptonshire
12 May
John Love
Peter Harper
Innes Ireland
Graham Hill
6
5
Crystal Palace , London
11 June
John Love
Peter Harper
None (no entries)
Roy Salvadori
7
NC
Goodwood Circuit , West Sussex
11 June
Unknown.
Unknown.
Nicky Byrne
P.J. Woodroffe
8
NC
Snetterton Motor Racing Circuit , Norfolk
15 July
Mick Clare
Alan Hutcheson
Unknown.
Graham Hill
9
6
Aintree Motor Racing Circuit , Liverpool
21 July
John Love
Peter Harper
Nicky Byrne
Jack Sears
10
7
Brands Hatch , Kent
6 August
John Love
Peter Jopp
David Haynes
Mike Parkes
11
8
Oulton Park , Cheshire
1 September
John Love
Peter Harper
Chris McLaren?
Graham Hill

Questions and formulas:
Question: Who was the Class A winner when the Class C winner was David Haynes?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,F1="David Haynes"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,F2:F11="David Haynes"),4))
Level: medium
Question: Who was the Class C winner in round 8?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1=8),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,A2:A11=8),6))
Level: medium
Question: Who was the Class D winner in round 6?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1=6),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,A2:A11=6),7))
Level: medium
Question: What was the circuit in round 2?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1=2),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,A2:A11=2),2))
Level: medium