Race Win Ratio

until 2019 Spanish GP

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	Ken-Paul Inc	100.00%	1	1
2	BSG Motor	50.00%	2	4
	George Salih	50.00%	2	4
	John Riseley-Prichard	50.00%	2	4
	Kurtis Kraft Inc	50.00%	1	2
6	Howard Keck Co	40.00%	2	5
7	FISA / Scuderia Sant'Ambroeus	33.33%	1	3
8	Scuderia Ambrosiana	26.32%	5	19
9	Melchester Racing	25.00%	5	20
9	Leader Cards Inc	25.00%	1	4
11	Brawn	23.53%	8	34
12	Mercedes-Benz	22.91%	93	406
13	Moss	20.00%	4	20
	John Young	20.00%	1	5
	World Wide Racing/Garvey Team Lotus	20.00%	1	5
16	Emilio de Villota	17.65%	3	17
17	John Zink	16.67%	2	12
17	John Coombs	16.67%	1	6
19	Vanwall	16.05%	13	81
20	Gilby Engineering	13.51%	5	37
21	ADAC	12.50%	1	8
21	Murrell Belanger	12.50%	1	8
23	Ferrari	11.57%	247	2134
24	Scuderia Lancia	11.11%	2	18
	Emmanuel de Graffenried	11.11%	1	9
	EMW	11.11%	1	9
27	Red Bull	10.89%	59	542
28	McLaren	10.54%	183	1736
29	J C Agajanian	10.00%	1	10
30	Maserati	8.41%	18	214
31	Williams	7.33%	114	1555
32	Bira	6.67%	1	15
32	Leslie Marr	6.67%	1	15
34	Cooper	6.35%	16	252
35	R.R.C. Walker Racing Team	5.99%	10	167
36	Lotus	5.97%	74	1240
37	Benetton	5.19%	27	520
38	Gould's Garage	5.00%	2	40
39	Alfa Romeo	4.42%	11	249
40	Brabham	4.33%	36	832
41	Renault	4.22%	37	876
42	Wolf	4.17%	3	72
43	John Goldie Racing	4.00%	1	25
44	BRM	3.50%	18	514
45	Tyrrell	3.50%	33	943
46	Bob Gerard	3.33%	1	30
47	Connaught Engineering	3.12%	2	64
48	Penske	3.03%	1	33
49	Eagle	2.86%	1	35
50	Porsche	2.50%	1	40
51	RAM	2.48%	3	121
52	Honda	1.99%	3	151
53	Equipe Gordini	1.66%	3	181
54	Ligier	1.44%	9	625
55	Theodore	1.25%	1	80
56	Ecurie Rosier	1.16%	1	86
57	Stewart	1.02%	1	98
58	Hesketh	0.97%	1	103
59	Shadow	0.85%	2	236
60	Jordan	0.80%	4	500
61	BMW	0.56%	1	180
62	March	0.42%	2	481
63	Toro Rosso	0.20%	1	504

Finishing position: