Disqualification Ratio

until 1985 South African 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	Disqualification Ratio	Disqualifications	Entries
1	Brian Lisles	17.32%	22	127
2	Giocomo Caliri	10.00%	1	10
3	Bindo Maserati	6.90%	2	29
3	Ettore Maserati	6.90%	2	29
5	Morris Nunn	6.06%	2	33
6	Stefan Fober	5.56%	1	18
7	Maurice Philippe	4.15%	27	650
8	Antonio Tomaini	3.33%	1	30
9	John Barnard	2.74%	4	146
10	Gustav Brunner	2.56%	2	78
11	Herve Guilpin	2.27%	1	44
12	Geoff Ferris	1.80%	4	222
13	Dave Baldwin	1.65%	2	121
14	Gordon Kimball	1.61%	1	62
15	Tim Wadrop	1.59%	1	63
16	Peter Berthon	1.56%	1	64
17	Eddie Strait	1.25%	1	80
18	Frank Costin	1.04%	1	96
19	Len Terry	1.01%	2	198
20	Aurelio Lampredi	0.91%	4	441
21	Ron Tauranac	0.89%	6	672
22	Dante Giacosa	0.88%	1	113
22	Peter Connew	0.88%	1	113
24	John Surtees	0.86%	3	347
25	Shahab Ahmed	0.83%	1	121
26	Patrick Head	0.81%	2	247
27	Neil Oatley	0.80%	2	250
28	Frank Dernie	0.78%	2	257
29	John Baldwin	0.78%	1	129
30	Ken Sears	0.72%	1	139
31	Ernesto Maserati	0.68%	2	294
32	Mauro Forghieri	0.66%	4	610
33	Alberto Massimino	0.65%	1	153
34	Colin Chapman	0.65%	12	1848
35	Gordon Coppuck	0.59%	3	512
36	Martin Ogilvie	0.57%	2	350
37	John Gentry	0.56%	1	179
38	Am�d�e Gordini	0.52%	2	386
39	David North	0.47%	1	215
40	Dave Wass	0.46%	2	438
41	Tony Southgate	0.45%	3	672
42	Gordon Murray	0.43%	2	462
43	Robin Herd	0.42%	3	715
44	Peter Wright	0.34%	1	296
45	Vittorio Bellentani	0.32%	2	621
46	Harvey Postlethwaite	0.29%	1	347
47	Ralph Bellamy	0.27%	1	369
48	Owen Maddock	0.18%	2	1106
49	Gioacchino Colombo	0.14%	1	726

Finishing position: