15th Place Finish Ratio

until 2008 French 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	Engine Manufacturer	15th Place Finish Ratio	15th Place Finishes	Entries
1	Castellotti	20.00%	1	5
1	Smith-Chevrolet	20.00%	1	5
3	Fondmetal	14.71%	5	34
4	DB	10.00%	1	10
4	Novi	10.00%	1	10
6	ATS (Ita)	7.69%	1	13
7	Toyota	5.70%	20	351
8	Offenhauser	3.12%	11	352
8	Mecachrome	3.12%	1	32
10	Supertec	3.06%	3	98
11	Asiatech	2.94%	2	68
	Acer	2.94%	1	34
	European	2.94%	1	34
14	Connaught	2.17%	3	138
15	Yamaha	1.92%	5	260
16	OSCA	1.79%	1	56
17	Mugen-Honda	1.70%	5	294
18	Matra	1.62%	3	185
19	Cosworth	1.58%	22	1393
20	Arrows	1.56%	1	64
21	Honda	1.48%	13	877
22	Hart	1.29%	5	387
23	Ilmor	1.25%	2	160
24	Chevrolet	1.10%	5	453
25	Porsche	1.08%	2	185
26	Alta	1.03%	4	387
27	Ford	0.98%	68	6904
28	Zakspeed	0.96%	1	104
29	Climax	0.90%	19	2100
30	Lea-Francis	0.83%	1	120
31	Peugeot	0.77%	2	259
32	Alfa Romeo	0.76%	6	786
32	Delahaye	0.76%	1	131
34	Judd	0.74%	3	403
35	TAG	0.74%	1	135
36	BRM	0.70%	8	1139
37	Bristol	0.66%	2	303
38	Ferrari	0.64%	16	2514
39	Renault	0.62%	8	1288
40	Simca-Gordini	0.60%	1	167
41	ERA	0.44%	1	227
42	BMW	0.37%	3	812
43	Petronas	0.33%	1	306
44	Talbot-Lago	0.29%	1	339
45	Maserati	0.24%	4	1658
46	Mercedes	0.19%	1	532

Finishing position: