Retirement Ratio

until 1958 Argentine 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	Designer	Retirement Ratio	Retirements	Entries
1	Bernd Nacke	100.00%	1	1
	Marcel Balsa	100.00%	1	1
	Paul Emery	100.00%	1	1
	Walter Gerstenberg	100.00%	1	1
5	Frank Costin	84.62%	11	13
6	David Hodkin	71.43%	5	7
7	Arialdo Ruggieri	68.75%	11	16
8	Colin Chapman	63.64%	14	22
9	Peter Berthon	58.82%	10	17
10	Ernst Loof	57.83%	48	83
11	Alex von Falkenhausen	55.56%	5	9
12	Alf Francis	52.08%	25	48
12	John Heath	52.08%	25	48
14	Hans Klenk	50.00%	1	2
15	Amédée Gordini	49.74%	192	386
16	Alberto Massimino	48.09%	63	131
17	Vittorio Jano	45.61%	52	114
18	Ernesto Maserati	42.96%	125	291
19	Bill Aston	41.18%	7	17
20	Paul Greifzu	40.00%	2	5
21	Dante Giacosa	39.82%	45	113
22	Vittorio Bellentani	38.55%	197	511
23	Carlo Chiti	37.50%	3	8
24	Antonio Lago	36.49%	108	296
24	Carlo Marchetti	36.49%	108	296
26	Reid Railton	36.36%	76	209
27	H J Adlington	35.71%	5	14
28	Geoffrey Taylor	35.00%	21	60
29	Mike Oliver	33.33%	83	249
	Rodney Clarke	33.33%	83	249
	Hans Gassmann	33.33%	14	42
	Hans Scherrenberg	33.33%	14	42
	Ludwig Krause	33.33%	14	42
34	Gioacchino Colombo	32.31%	199	616
35	Owen Maddock	31.00%	93	300
36	Aurelio Lampredi	29.84%	131	439
37	Bindo Maserati	29.63%	8	27
37	Ettore Maserati	29.63%	8	27
39	Ferdinand Porsche	29.41%	5	17
40	Jack Brabham	25.00%	1	4
40	Wilhelm Hild	25.00%	1	4
42	Rudolf Krause	12.50%	1	8

Finishing position: