13th Place Finish Ratio

until 1977 Belgian 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	13th Place Finish Ratio	13th Place Finishes	Entries
1	Vehicle hire	25.00%	1	4
2	Refrigeration	12.50%	1	8
3	Safety systems	8.82%	3	34
4	Electronics	5.88%	1	17
5	Sugar	5.77%	3	52
6	Airline	5.13%	2	39
7	Car parts	5.00%	1	20
8	Caravan manufacture	4.92%	3	61
9	Ceramics	4.17%	1	24
10	Contraception	3.45%	1	29
11	Toys	3.23%	2	62
12	Tourism	2.86%	1	35
13	Tools	2.63%	2	76
14	Finance	2.53%	2	79
15	Cleaning	2.27%	1	44
16	Watches	2.19%	7	320
17	Motor industry	1.60%	3	188
18	Spark plugs	1.58%	11	695
19	Drinks	1.54%	1	65
20	Tobacco	1.47%	14	955
21	Oil	1.39%	32	2300
22	Toiletries	1.34%	2	149
23	Food	1.27%	1	79
24	Tyres	1.24%	20	1613
25	Nuts and bolts	1.23%	1	81
26	Steering wheel	1.14%	1	88
27	Brakes	1.04%	2	193
28	Car manufacture	0.97%	4	414
29	Alcohol	0.52%	1	191

Finishing position: