13th Place Finish Ratio

until 1978 Canadian 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	Car Manufacturer	13th Place Finish Ratio	13th Place Finishes	Entries
1	Willment	50.00%	1	2
2	Dunn	33.33%	1	3
3	Boro	16.67%	1	6
	LEC	16.67%	1	6
	Trevis	16.67%	1	6
6	RRA	14.29%	2	14
6	HW	14.29%	1	7
8	Eifelland	11.11%	1	9
	Maki	11.11%	1	9
	McRae	11.11%	1	9
11	Kuzma	10.81%	4	37
12	Lyncar	8.33%	1	12
13	Wolf-Williams	8.00%	2	25
14	Aiden-Cooper	7.69%	1	13
15	Renault	6.67%	1	15
16	ATS	6.25%	2	32
16	JBW	6.25%	1	16
18	Ensign	5.43%	5	92
19	Fittipaldi	4.62%	3	65
20	Hill	4.35%	1	23
20	Turner	4.35%	1	23
22	Honda	4.17%	2	48
23	HAR	4.00%	1	25
24	Aston Martin	3.85%	1	26
25	Porsche	3.82%	6	157
26	Gilby	3.33%	1	30
27	Hesketh	3.12%	3	96
28	MG	2.17%	1	46
29	Lola	2.08%	8	384
30	Kurtis Kraft	2.06%	4	194
31	March	2.03%	11	543
32	LDS	2.00%	3	150
33	Bugatti	1.79%	1	56
34	ERA	1.75%	4	229
35	Surtees	1.52%	7	461
36	Williams	1.52%	1	66
37	BRM	1.51%	12	795
38	Shadow	1.49%	3	201
39	McLaren	1.47%	11	746
40	Cooper	1.46%	23	1579
41	Delage	1.39%	1	72
42	Alta	1.30%	1	77
43	Lotus	1.23%	22	1788
44	Talbot-Lago	1.19%	5	420
45	BMW	1.12%	1	89
45	Veritas	1.12%	1	89
47	Brabham	1.03%	10	975
48	Connaught	0.93%	3	323
49	Matra	0.74%	1	135
50	Chevron	0.73%	1	137
51	HWM	0.56%	1	179
52	Ferrari	0.54%	7	1308
53	Gordini	0.45%	1	222
54	Tyrrell	0.36%	1	279
55	Maserati	0.29%	4	1393

Finishing position: