13th Place Finish Ratio

until 1978 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	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
3	Trevis	16.67%	1	6
5	RRA	14.29%	2	14
5	HW	14.29%	1	7
7	Eifelland	11.11%	1	9
	Maki	11.11%	1	9
	McRae	11.11%	1	9
10	Kuzma	10.81%	4	37
11	Lyncar	9.09%	1	11
12	Wolf-Williams	8.00%	2	25
13	Aiden-Cooper	7.69%	1	13
14	JBW	6.25%	1	16
15	Fittipaldi	6.00%	3	50
16	Ensign	5.80%	4	69
17	Hill	4.35%	1	23
17	Turner	4.35%	1	23
19	Honda	4.17%	2	48
20	HAR	4.00%	1	25
21	Aston Martin	3.85%	1	26
22	Porsche	3.82%	6	157
23	Gilby	3.33%	1	30
24	Hesketh	2.38%	2	84
25	Lola	2.20%	8	363
26	March	2.20%	11	501
27	MG	2.17%	1	46
28	Kurtis Kraft	2.06%	4	194
29	LDS	2.00%	3	150
30	Bugatti	1.79%	1	56
31	Shadow	1.76%	3	170
32	ERA	1.75%	4	229
33	BRM	1.52%	12	790
34	Cooper	1.46%	23	1579
35	McLaren	1.45%	10	688
36	Surtees	1.44%	6	417
37	Delage	1.39%	1	72
38	Alta	1.30%	1	77
39	Lotus	1.26%	22	1748
40	Talbot-Lago	1.19%	5	420
41	BMW	1.12%	1	89
41	Veritas	1.12%	1	89
43	Brabham	1.06%	10	944
44	Connaught	0.93%	3	323
45	Chevron	0.79%	1	126
46	Matra	0.74%	1	135
47	HWM	0.56%	1	179
48	Ferrari	0.55%	7	1278
49	Gordini	0.45%	1	222
50	Tyrrell	0.40%	1	249
51	Maserati	0.29%	4	1393

Finishing position: