Retirement Ratio

until 1963 German 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	Claude Hill	100.00%	2	2
	Bernd Nacke	100.00%	1	1
	Doug Serrurier	100.00%	1	1
	Frank Kurtis	100.00%	1	1
	Marcel Balsa	100.00%	1	1
	Walter Gerstenberg	100.00%	1	1
7	Frank Costin	84.62%	11	13
8	David Hodkin	71.43%	5	7
9	Arialdo Ruggieri	68.75%	11	16
10	Fred Wilkinson	66.67%	4	6
11	Eric Broadley	59.26%	16	27
12	Ernst Loof	57.83%	48	83
13	Alex von Falkenhausen	55.56%	5	9
14	Alf Francis	52.08%	25	48
14	John Heath	52.08%	25	48
16	Peter Berthon	51.56%	33	64
17	Len Terry	50.00%	2	4
17	Hans Klenk	50.00%	1	2
19	Am�d�e Gordini	49.74%	192	386
20	Ted Cutting	46.67%	7	15
21	Alberto Massimino	45.70%	69	151
22	Mauro Forghieri	45.45%	5	11
23	Ernesto Maserati	42.52%	125	294
24	Bill Aston	41.18%	7	17
25	Paul Greifzu	40.00%	2	5
25	Tony Robinson	40.00%	2	5
27	Dante Giacosa	39.82%	45	113
28	Vittorio Bellentani	39.77%	247	621
29	Tony Rudd	38.39%	43	112
30	Reid Railton	36.36%	76	209
30	Paul Emery	36.36%	12	33
32	Colin Chapman	36.31%	256	705
33	Antonio Lago	36.24%	108	298
33	Carlo Marchetti	36.24%	108	298
35	H J Adlington	35.71%	5	14
36	Vittorio Jano	35.50%	93	262
37	Geoffrey Taylor	35.00%	21	60
38	Gioacchino Colombo	34.30%	249	726
39	Hans Gassmann	33.33%	14	42
	Hans Scherrenberg	33.33%	14	42
	Ludwig Krause	33.33%	14	42
42	Mike Oliver	33.21%	87	262
42	Rodney Clarke	33.21%	87	262
44	Owen Maddock	32.91%	336	1021
45	Ron Tauranac	30.43%	7	23
46	Carlo Chiti	29.88%	49	164
47	Aurelio Lampredi	29.71%	131	441
48	Ferdinand Porsche	29.41%	5	17
49	Bindo Maserati	27.59%	8	29
49	Ettore Maserati	27.59%	8	29
51	Jack Brabham	25.00%	1	4
52	Valerio Colotti	20.00%	1	5
53	Helmut Bott	13.46%	14	104
54	Wilhelm Hild	13.11%	16	122
55	Rudolf Krause	12.50%	1	8
56	Hans Mezger	11.36%	10	88

Finishing position: