Retirement Ratio

until 1974 Swedish 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	Bang & Olufsen	70.00%	7	10
6	LEC	60.00%	3	5
7	Duckhams	58.33%	21	36
8	Warsteiner	57.14%	4	7
9	Personal	54.55%	6	11
10	Pagnossin	54.17%	13	24
11	Martini	52.54%	31	59
12	Motorcraft	52.38%	11	21
13	UOP	51.28%	20	39
14	Brooke Bond Oxo	50.77%	33	65
15	Politoys	50.00%	18	36
	Beta	50.00%	7	14
	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	Motul	48.21%	27	56
23	Lockheed	47.44%	37	78
24	Marlboro	47.33%	71	150
25	Fina	46.88%	30	64
26	Esso	46.81%	44	94
27	Argentine Meat	46.77%	29	62
	Bardahl	46.77%	29	62
	YPF	46.77%	29	62
30	Elan	46.67%	7	15
30	Stroh	46.67%	7	15
32	Firestone	46.53%	134	288
33	Iso	46.34%	19	41
34	Ferodo	46.10%	65	141
35	Champion	45.45%	110	242
	STP	45.45%	70	154
	Gulf	45.45%	20	44
38	Gold Leaf	45.28%	48	106
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	John Player Special	41.18%	28	68
44	Embassy	40.00%	16	40
44	Reynolds Aluminium	40.00%	14	35
46	Heuer	38.40%	48	125
47	Ford	35.80%	87	243
48	Koni	35.71%	5	14
	Schmitthelm	35.71%	5	14
	SKF	35.71%	5	14
51	Goodyear	34.19%	133	389
52	Fiat	33.33%	10	30
	Homelite	33.33%	1	3
	Suzuki	33.33%	1	3
55	Girling	32.14%	9	28
56	Elf	31.70%	71	224
57	Magneti Marelli	31.03%	18	58
58	Yardley	30.50%	43	141
59	Agip	30.30%	10	33
60	Texaco	29.85%	20	67
61	Auto Motor und Sport	29.17%	7	24
62	Autolite	28.36%	19	67
63	Dempster	25.00%	1	4

Finishing position: