13th Place Finish Ratio

until 1973 Brazilian GP

Include Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.

Finishing position:

Pos	Car Manufacturer	13th Place Finish Ratio	13th Place Finishes	Entries
1	Willment	50.00%	1	2
2	RRA	14.29%	2	14
2	HW	14.29%	1	7
4	Eifelland	11.11%	1	9
5	Aiden-Cooper	7.69%	1	13
6	JBW	6.25%	1	16
7	Turner	4.55%	1	22
8	Honda	4.17%	2	48
9	HAR	4.00%	1	25
10	Aston Martin	3.85%	1	26
11	Porsche	3.82%	6	157
12	Gilby	3.33%	1	30
13	March	3.11%	8	257
14	MG	2.17%	1	46
15	LDS	2.00%	3	150
16	Lola	1.92%	5	261
17	Bugatti	1.79%	1	56
18	ERA	1.75%	4	229
19	McLaren	1.49%	6	404
20	Cooper	1.46%	23	1579
21	Delage	1.39%	1	72
22	BRM	1.32%	9	682
23	Alta	1.30%	1	77
24	Talbot-Lago	1.19%	5	420
25	Brabham	1.14%	8	701
26	BMW	1.12%	1	89
26	Veritas	1.12%	1	89
28	Lotus	1.06%	16	1503
29	Connaught	0.93%	3	323
30	Matra	0.74%	1	135
31	HWM	0.56%	1	179
32	Surtees	0.55%	1	183
33	Ferrari	0.52%	6	1143
34	Gordini	0.45%	1	222
35	Maserati	0.29%	4	1390

Finishing position: