10th 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	Engine Manufacturer	10th Place Finish Ratio	10th Place Finishes	Entries
1	Simca-Deho	100.00%	1	1
2	Speluzzi	33.33%	1	3
3	DB	20.00%	2	10
3	RRA	20.00%	1	5
5	Borgward	15.62%	5	32
6	Aston Martin	13.89%	5	36
7	Fiat	10.53%	2	19
8	Scarab	9.09%	1	11
9	Rover	6.67%	1	15
10	Simca	5.88%	2	34
11	Porsche	5.20%	9	173
12	Talbot	4.88%	4	82
13	Connaught	4.35%	6	138
14	MG	4.08%	2	49
15	Amilcar	4.00%	1	25
15	Weslake	4.00%	1	25
17	Bugatti	3.64%	2	55
18	Alfa Romeo	3.11%	11	354
19	Delahaye	3.05%	4	131
20	BMW	2.84%	5	176
21	Ford	2.64%	34	1287
22	Climax	2.62%	55	2100
23	Alta	2.58%	10	387
24	Lea-Francis	2.50%	3	120
25	Maserati	2.47%	41	1658
26	JAP	2.44%	1	41
27	Talbot-Lago	2.36%	8	339
28	Chevrolet	2.30%	6	261
29	Vanwall	2.22%	2	90
30	BRM	2.05%	21	1024
31	Bristol	1.98%	6	303
32	Riley	1.85%	1	54
33	Simca-Gordini	1.80%	3	167
34	OSCA	1.79%	1	56
35	Cosworth	1.78%	6	337
36	Gordini	1.72%	4	232
37	Repco	1.66%	3	181
38	Matra	1.39%	1	72
39	Ferrari	1.30%	15	1152
40	Lotus	1.15%	1	87
40	Veritas	1.15%	1	87
42	ERA	0.88%	2	227

Finishing position: