Race Win Ratio

until 1958 Indianapolis 500

Ignore Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.

Finishing position:

Pos	Team	Race Win Ratio	Race Wins	Entries
1	George Salih	100.00%	2	2
2	BSG Motor	50.00%	2	4
	John Riseley-Prichard	50.00%	2	4
	Kurtis Kraft Inc	50.00%	1	2
5	Howard Keck Co	40.00%	2	5
6	Scuderia Ambrosiana	26.32%	5	19
7	Mercedes-Benz	23.81%	10	42
8	Alfa Romeo	22.92%	11	48
9	John Zink	22.22%	2	9
10	Moss	20.00%	4	20
10	John Young	20.00%	1	5
12	John Coombs	16.67%	1	6
13	Gilby Engineering	15.62%	5	32
14	Vanwall	13.56%	8	59
15	Ferrari	13.33%	34	255
16	R.R.C. Walker Racing Team	13.04%	3	23
17	ADAC	12.50%	1	8
17	Murrell Belanger	12.50%	1	8
19	Cooper	11.43%	4	35
20	Scuderia Lancia	11.11%	2	18
	Emmanuel de Graffenried	11.11%	1	9
	EMW	11.11%	1	9
	J C Agajanian	11.11%	1	9
24	Maserati	8.41%	18	214
25	Bira	6.67%	1	15
25	Leslie Marr	6.67%	1	15
27	Lotus	5.26%	1	19
28	Gould's Garage	5.13%	2	39
29	Bob Gerard	3.70%	1	27
30	Connaught Engineering	3.17%	2	63
31	BRM	2.63%	1	38
32	Equipe Gordini	1.66%	3	181
33	Ecurie Rosier	1.16%	1	86

Finishing position: