Table:
0
A
B
C
D
E
F
1
Race Name
Circuit
Date
Winning driver
Constructor
Report
2
XI Pau Grand Prix
Pau
10 April
Juan Manuel Fangio
Maserati
Report
3
II Richmond Trophy
Goodwood
10 April
Reg Parnell
Maserati
Report
4
V San Remo Grand Prix
Sanremo
16 April
Juan Manuel Fangio
Alfa Romeo
Report
5
IV Grand Prix de Paris
Montlhéry
30 April
Georges Grignard
Talbot-Lago
Report
6
XII British Empire Trophy
Douglas
15 June
Bob Gerard
ERA
Report
7
IV Gran Premio di Bari
Bari
9 July
Giuseppe Farina
Alfa Romeo
Report
8
IV J.C.C. Jersey Road Race
Jersey
13 July
Peter Whitehead
Ferrari
Report
9
XII Circuit de l'Albigeois
Albi
16 July
Louis Rosier
Talbot-Lago
Report
10
I Grote Prijs van Nederland
Zandvoort
23 July
Louis Rosier
Talbot-Lago
Report
11
III Grand Prix des Nations
Geneve
30 July
Juan Manuel Fangio
Alfa Romeo
Report
12
I Nottingham Trophy
Gamston
7 August
David Hampshire
Maserati
Report
13
IV Ulster Trophy
Dundrod
12 August
Peter Whitehead
Ferrari
Report
14
XIX Coppa Acerbo
Pescara
15 August
Juan Manuel Fangio
Alfa Romeo
Report
15
I Sheffield Telegraph Trophy
Gamston
19 August
Cuth Harrison
ERA
Report
16
II BRDC International Trophy
Silverstone
26 August
Giuseppe Farina
Alfa Romeo
Report
17
III Goodwood Trophy
Goodwood
30 September
Reg Parnell
BRM
Report
18
X Gran Premio de Penya Rhin
Pedralbes
29 October
Alberto Ascari
Ferrari
Report

Questions and formulas:
Question: Which driver won the iv j.c.c. jersey road race?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="iv j.c.c. jersey road race"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F18,A2:A18="iv j.c.c. jersey road race"),4))
Level: medium