Retirement Ratio

until 1974 Monaco 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	Castrol	81.82%	9	11
1	Ward	81.82%	9	11
3	Harvey Titanium	75.00%	6	8
4	Lucky Strike	71.43%	5	7
5	Personal	66.67%	6	9
5	Warsteiner	66.67%	4	6
7	Bang & Olufsen	62.50%	5	8
8	LEC	60.00%	3	5
9	Duckhams	55.88%	19	34
10	Pagnossin	54.17%	13	24
11	Martini	52.63%	30	57
12	Motorcraft	52.38%	11	21
13	UOP	51.35%	19	37
14	Brooke Bond Oxo	50.77%	33	65
15	Politoys	50.00%	18	36
	Beta	50.00%	6	12
	Matchbox	50.00%	2	4
	Capricorn	50.00%	1	2
	Flame Out	50.00%	1	2
20	Dunlop	49.51%	51	103
21	BP	49.00%	49	100
22	Iso	48.72%	19	39
23	Fina	48.33%	29	60
24	Marlboro	47.95%	70	146
25	Lockheed	47.44%	37	78
26	Esso	46.81%	44	94
27	Argentine Meat	46.77%	29	62
	Bardahl	46.77%	29	62
	YPF	46.77%	29	62
30	Motul	46.30%	25	54
31	Firestone	46.15%	132	286
	Elan	46.15%	6	13
	Stroh	46.15%	6	13
34	Ferodo	46.10%	65	141
35	STP	45.45%	70	154
35	Gulf	45.45%	20	44
37	Gold Leaf	45.28%	48	106
38	Champion	44.83%	104	232
39	Visit Argentina	43.75%	14	32
40	GKN	43.21%	35	81
41	Eifelland Caravans	42.50%	17	40
42	Shell	42.28%	115	272
43	Embassy	42.11%	16	38
44	Reynolds Aluminium	40.00%	14	35
45	John Player Special	39.39%	26	66
46	Heuer	36.44%	43	118
47	Ford	36.10%	87	241
48	Fiat	33.33%	10	30
	Dempster	33.33%	1	3
	Homelite	33.33%	1	3
	Suzuki	33.33%	1	3
52	Goodyear	33.24%	125	376
53	Girling	32.14%	9	28
54	Elf	31.98%	71	222
55	Yardley	30.00%	42	140
56	Texaco	29.23%	19	65
57	Auto Motor und Sport	29.17%	7	24
58	Magneti Marelli	28.57%	16	56
59	Autolite	28.36%	19	67
60	Agip	25.81%	8	31
61	Koni	25.00%	3	12
	Schmitthelm	25.00%	3	12
	SKF	25.00%	3	12

Finishing position: