Race Win Ratio

until 1971 Italian 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	Entrant	Race Win Ratio	Race Wins	Entries
1	FISA	100.00%	1	1
1	Ken-Paul Inc	100.00%	1	1
3	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
7	Howard Keck Co	40.00%	2	5
8	Elf Team Tyrrell	27.78%	5	18
9	Stirling Moss Ltd	26.67%	4	15
10	Scuderia Ambrosiana	26.32%	5	19
11	Leader Cards Inc	25.00%	1	4
12	Daimler Benz AG	23.81%	10	42
13	Alfa Romeo SpA	22.92%	11	48
14	Matra International	20.45%	9	44
15	John Young	20.00%	1	5
16	Vandervell Products	16.88%	13	77
17	John Zink	16.67%	2	12
17	John Coombs	16.67%	1	6
19	Gilby Engineering	13.51%	5	37
20	ADAC	12.50%	1	8
20	Murrell Belanger	12.50%	1	8
22	Team Lotus	12.05%	27	224
23	Scuderia Ferrari	11.75%	39	332
24	Scuderia Lancia	11.11%	2	18
	Emmanuel de Graffenried	11.11%	1	9
	Rennkollektiv EMW	11.11%	1	9
27	Gold Leaf Team Lotus	10.78%	11	102
28	J.C. Agajanian	10.00%	1	10
29	Officine Alfieri Maserati	8.41%	18	214
29	Scuderia Ferrari SpA SEFAC	8.41%	18	214
31	R.R.C. Walker Racing Team	7.32%	9	123
32	Brabham Racing Organisation	7.30%	10	137
33	Gould's Garage (Bristol)	7.14%	2	28
34	Leslie Marr	6.67%	1	15
34	Prince Bira	6.67%	1	15
36	Cooper Car Co	6.35%	16	252
37	Motor Racing Developments	5.88%	3	51
38	Owen Racing Organisation	5.07%	14	276
39	Yardley Team BRM	4.69%	3	64
40	Honda Racing	4.55%	1	22
40	Honda R&D Co	4.55%	1	22
42	Tyrrell Racing Organisation	4.00%	1	25
43	Bob Gerard	3.70%	1	27
44	Bruce McLaren Motor Racing	3.57%	4	112
45	Connaught Engineering	3.17%	2	63
46	Porsche System Engineering	3.03%	1	33
47	Rob Walker/Jack Durlacher Racing	2.94%	1	34
48	Anglo American Racers	2.86%	1	35
49	Equipe Gordini	1.66%	3	181
50	Ecurie Rosier	1.16%	1	86

Finishing position: