Retirement Ratio

until 1973 French 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	Sponsor	Retirement Ratio	Retirements	Entries
1	LEC	100.00%	1	1
2	Lucky Strike	83.33%	5	6
3	Castrol	81.82%	9	11
3	Ward	81.82%	9	11
5	Harvey Titanium	75.00%	6	8
6	Embassy	58.33%	7	12
6	UOP	58.33%	7	12
8	Iso	56.25%	9	16
9	Martini	55.56%	15	27
10	Marlboro	54.44%	49	90
11	Brooke Bond Oxo	52.94%	27	51
	Fina	52.94%	9	17
	Pagnossin	52.94%	9	17
14	Duckhams	52.38%	11	21
14	Motorcraft	52.38%	11	21
16	Motul	50.00%	18	36
	Politoys	50.00%	18	36
	Capricorn	50.00%	1	2
	Flame Out	50.00%	1	2
20	Dunlop	49.51%	51	103
21	BP	49.00%	49	100
22	Champion	48.25%	69	143
23	Esso	48.10%	38	79
24	Ferodo	47.73%	63	132
25	Lockheed	47.37%	27	57
26	Firestone	46.77%	123	263
27	Argentine Meat	45.83%	22	48
	Bardahl	45.83%	22	48
	YPF	45.83%	22	48
30	Gulf	45.45%	20	44
31	Gold Leaf	45.28%	48	106
32	STP	43.75%	56	128
32	Visit Argentina	43.75%	14	32
34	GKN	43.21%	35	81
35	Eifelland Caravans	42.50%	17	40
36	Shell	42.07%	114	271
37	Heuer	40.74%	22	54
38	Reynolds Aluminium	40.00%	14	35
39	Ford	38.03%	81	213
40	Goodyear	34.38%	88	256
41	Elf	33.51%	65	194
42	John Player Special	33.33%	13	39
	Texaco	33.33%	13	39
	Fiat	33.33%	10	30
45	Girling	32.14%	9	28
46	Magneti Marelli	31.58%	12	38
47	Yardley	31.03%	36	116
48	Agip	30.77%	4	13
49	Auto Motor und Sport	29.17%	7	24
50	Autolite	28.36%	19	67

Finishing position: