Retirement Ratio

until 1964 British 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
	Frank Kurtis	100.00%	1	1
	Marcel Balsa	100.00%	1	1
	Walter Gerstenberg	100.00%	1	1
6	Frank Costin	84.62%	11	13
7	David Hodkin	71.43%	5	7
8	Arialdo Ruggieri	68.75%	11	16
9	Fred Wilkinson	66.67%	4	6
9	Doug Serrurier	66.67%	2	3
11	Len Terry	60.00%	3	5
12	Ernst Loof	57.83%	48	83
13	Eric Broadley	56.25%	18	32
14	Alex von Falkenhausen	55.56%	5	9
15	Alf Francis	52.08%	25	48
15	John Heath	52.08%	25	48
17	Peter Berthon	51.56%	33	64
18	Tony Robinson	50.00%	9	18
18	Hans Klenk	50.00%	1	2
20	Am�d�e Gordini	49.74%	192	386
21	Ted Cutting	46.67%	7	15
22	Mauro Forghieri	45.16%	14	31
23	Alberto Massimino	45.10%	69	153
24	Ernesto Maserati	42.52%	125	294
25	Bill Aston	41.18%	7	17
26	Paul Greifzu	40.00%	2	5
27	Dante Giacosa	39.82%	45	113
28	Vittorio Bellentani	39.77%	247	621
29	Ron Tauranac	37.33%	28	75
30	Paul Emery	37.14%	13	35
31	Reid Railton	36.36%	76	209
32	Antonio Lago	36.24%	108	298
32	Carlo Marchetti	36.24%	108	298
34	Colin Chapman	36.22%	297	820
35	H J Adlington	35.71%	5	14
36	Vittorio Jano	35.61%	94	264
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	Tony Rudd	32.89%	49	149
45	Owen Maddock	32.61%	346	1061
46	Carlo Chiti	31.40%	54	172
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	Eddie Strait	20.00%	3	15
52	Valerio Colotti	20.00%	1	5
54	Helmut Bott	13.91%	16	115
55	Wilhelm Hild	13.53%	18	133
56	Rudolf Krause	12.50%	1	8
57	Hans Mezger	12.12%	12	99

Finishing position: