Retirement Ratio

until 1959 Dutch 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	Peter Berthon	60.00%	27	45
9	Ernst Loof	57.83%	48	83
10	Alex von Falkenhausen	55.56%	5	9
11	Alf Francis	52.08%	25	48
11	John Heath	52.08%	25	48
13	Colin Chapman	50.77%	33	65
14	Ted Cutting	50.00%	2	4
14	Hans Klenk	50.00%	1	2
16	Amédée Gordini	49.74%	192	386
17	Alberto Massimino	48.09%	63	131
18	Vittorio Jano	44.00%	66	150
19	Ernesto Maserati	42.66%	125	293
20	Bill Aston	41.18%	7	17
21	Paul Greifzu	40.00%	2	5
22	Dante Giacosa	39.82%	45	113
23	Vittorio Bellentani	39.80%	236	593
24	Carlo Chiti	38.30%	18	47
25	Antonio Lago	36.49%	108	296
25	Carlo Marchetti	36.49%	108	296
27	Reid Railton	36.36%	76	209
28	H J Adlington	35.71%	5	14
29	Geoffrey Taylor	35.00%	21	60
30	Gioacchino Colombo	34.10%	238	698
31	Hans Gassmann	33.33%	14	42
	Hans Scherrenberg	33.33%	14	42
	Ludwig Krause	33.33%	14	42
	Wilhelm Hild	33.33%	3	9
35	Mike Oliver	32.95%	86	261
35	Rodney Clarke	32.95%	86	261
37	Owen Maddock	31.65%	138	436
38	Aurelio Lampredi	29.84%	131	439
39	Ferdinand Porsche	29.41%	5	17
40	Bindo Maserati	27.59%	8	29
40	Ettore Maserati	27.59%	8	29
42	Jack Brabham	25.00%	1	4
43	Rudolf Krause	12.50%	1	8

Finishing position: