Retirement Ratio

until 1954 Bari 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
	Walter Gerstenberg	100.00%	1	1
4	David Hodkin	71.43%	5	7
5	Arialdo Ruggieri	68.75%	11	16
6	Ernst Loof	60.00%	48	80
7	Alex von Falkenhausen	55.56%	5	9
8	Alf Francis	52.17%	24	46
8	John Heath	52.17%	24	46
10	Peter Berthon	50.00%	2	4
11	Alberto Massimino	48.54%	50	103
12	Amédée Gordini	46.79%	131	280
13	Ernesto Maserati	42.96%	125	291
14	Vittorio Bellentani	41.77%	33	79
15	Bill Aston	41.18%	7	17
16	Paul Greifzu	40.00%	2	5
17	Dante Giacosa	39.82%	45	113
18	Antonio Lago	36.49%	108	296
18	Carlo Marchetti	36.49%	108	296
20	Reid Railton	36.36%	76	209
21	H J Adlington	35.71%	5	14
22	Geoffrey Taylor	35.59%	21	59
23	Mike Oliver	32.06%	42	131
23	Rodney Clarke	32.06%	42	131
25	Owen Maddock	30.15%	60	199
26	Bindo Maserati	29.63%	8	27
26	Ettore Maserati	29.63%	8	27
28	Ferdinand Porsche	29.41%	5	17
29	Aurelio Lampredi	26.23%	85	324
30	Gioacchino Colombo	21.90%	46	210
31	Rudolf Krause	12.50%	1	8

Finishing position: