10th Place Finish Ratio

until 1959 Indianapolis 500

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	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	Fiat	11.11%	2	18
6	Novi	10.00%	1	10
7	Aston Martin	9.52%	2	21
8	Simca	5.88%	2	34
9	Talbot	4.88%	4	82
10	Connaught	4.48%	6	134
11	Ford	4.17%	1	24
12	Amilcar	4.00%	1	25
13	Bugatti	3.64%	2	55
14	Delahaye	3.05%	4	131
15	Climax	2.81%	9	320
16	Alta	2.62%	10	381
17	Alfa Romeo	2.53%	4	158
18	Offenhauser	2.52%	8	317
19	Lea-Francis	2.50%	3	120
19	OSCA	2.50%	1	40
21	JAP	2.44%	1	41
22	Talbot-Lago	2.38%	8	336
23	Vanwall	2.33%	2	86
23	MG	2.33%	1	43
25	Maserati	2.13%	29	1359
26	Bristol	2.01%	6	298
27	Riley	1.92%	1	52
28	Simca-Gordini	1.80%	3	167
29	BMW	1.76%	3	170
30	Gordini	1.72%	4	232
31	Ferrari	1.33%	10	754
32	Veritas	1.15%	1	87
33	ERA	0.88%	2	227

Finishing position: