Disqualification Ratio

until 1988 Mexican 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 Industry	Disqualification Ratio	Disqualifications	Entries
1	Belt conveyors	25.00%	2	8
2	Electronics	9.82%	22	224
3	Chemicals	8.49%	22	259
4	Domestic appliances	5.00%	2	40
5	Safety systems	2.78%	1	36
6	Car parts	2.28%	7	307
7	Transportation	2.27%	4	176
8	Fashion	2.11%	2	95
9	Accommodation	2.04%	1	49
10	Toys	1.61%	1	62
11	Bedding equipment	1.25%	1	80
11	Shoes	1.25%	1	80
13	Nuts and bolts	1.23%	1	81
14	Airline	1.18%	4	340
15	Office equipment	1.09%	2	184
16	Steering wheel	1.00%	2	200
17	Watches	0.90%	9	997
18	Photography	0.83%	1	120
19	Finance	0.82%	3	367
20	Tobacco	0.76%	22	2881
21	Clothing	0.76%	2	262
22	Gambling	0.71%	1	140
23	Car manufacture	0.70%	11	1561
24	Cleaning	0.69%	2	288
25	Oil	0.67%	36	5355
26	Toiletries	0.67%	1	149
27	Motor industry	0.66%	8	1210
28	Wheels	0.58%	2	344
29	Tyres	0.54%	23	4279
30	Alcohol	0.45%	2	447
31	Brakes	0.44%	4	910
32	Spark plugs	0.39%	9	2280
33	Dampers	0.38%	3	784
34	Food	0.32%	1	314
35	Drinks	0.31%	1	318
36	Tools	0.22%	1	461

Finishing position: