13th Place Finish Ratio

until 1974 Swedish 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
	HW	14.29%	1	7
	McRae	14.29%	1	7
5	Eifelland	11.11%	1	9
6	Aiden-Cooper	7.69%	1	13
6	Ensign	7.69%	1	13
8	JBW	6.25%	1	16
9	Shadow	5.36%	3	56
10	Turner	4.55%	1	22
11	Honda	4.17%	2	48
12	HAR	4.00%	1	25
13	Aston Martin	3.85%	1	26
14	Porsche	3.82%	6	157
15	Gilby	3.33%	1	30
16	March	2.37%	8	338
17	MG	2.17%	1	46
18	LDS	2.00%	3	150
19	Bugatti	1.79%	1	56
20	ERA	1.75%	4	229
21	Lola	1.58%	5	316
22	McLaren	1.57%	8	511
23	BRM	1.46%	11	752
24	Cooper	1.46%	23	1579
25	Chevron	1.45%	1	69
26	Delage	1.39%	1	72
27	Alta	1.30%	1	77
28	Talbot-Lago	1.19%	5	420
29	Brabham	1.15%	9	783
30	Lotus	1.14%	18	1575
31	BMW	1.12%	1	89
31	Veritas	1.12%	1	89
33	Surtees	1.08%	3	278
34	Connaught	0.93%	3	323
35	Tyrrell	0.83%	1	121
36	Matra	0.74%	1	135
37	HWM	0.56%	1	179
38	Ferrari	0.51%	6	1174
39	Gordini	0.45%	1	222
40	Maserati	0.29%	4	1390

Finishing position: