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
25 March
George 'Doc' Shepherd
Alan Hutcheson
None (no entries?)
Gawaine Baillie
3
2
Goodwood Circuit , West Sussex
3 April
John Whitmore
Bill Blydenstein
Ellis Cuff-Miller
Mike Parkes
4
3
Aintree Motor Racing Circuit , Liverpool
22 April
John Whitmore
Alan Hutcheson
Chris Kerrison?
Roy Salvadori
5
4
Silverstone Circuit , Northamptonshire
6 May
Bill Aston
Peter Harper
Chris Kerrison?
Graham Hill
6
5
Crystal Palace , London
22 May
George 'Doc' Shepherd
Bill Blydenstein
None (no entries)
Roy Salvadori
7
6
Silverstone Circuit , Northamptonshire
8 July
Herbert Linge
Ellis Cuff-Miller
Chris Kerrison
Mike Parkes
8
7
Brands Hatch , Kent
7 August
Frank Hamlin
Alan Hutcheson
Chris Kerrison
Mike Parkes
9
8
Oulton Park , Cheshire
23 September
John Whitmore
Peter Harper
None (no entries?)
Roy Salvadori

Questions and formulas:
Question: In which round did Roy Salvadori won Class D and Alan Hutcheson won Class B?
Formula: SUM(FILTER(A1, (G1="Roy Salvadori")*(E1="Alan Hutcheson")))
Formula2: SUM(FILTER(A2:A9, (G2:G9="Roy Salvadori")*(E2:E9="Alan Hutcheson")))
Level: easy
Question: When did Alan Hutcheson won Class B on round 1?
Formula: LET(query1,LET(query1,FILTER(A1:G1,E1="Alan Hutcheson"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)=1))
Formula2: LET(query1,LET(query1,FILTER(A2:G9,E2:E9="Alan Hutcheson"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)=1))
Level: hard