Disqualification Ratio

until 1984 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	Stefan Fober	50.00%	1	2
2	Giocomo Caliri	10.00%	1	10
3	Bindo Maserati	6.90%	2	29
3	Ettore Maserati	6.90%	2	29
5	Brian Lisles	6.49%	5	77
6	Morris Nunn	6.06%	2	33
7	Gustav Brunner	5.56%	2	36
8	John Barnard	3.41%	3	88
9	Antonio Tomaini	3.33%	1	30
10	Herve Guilpin	2.27%	1	44
11	Geoff Ferris	1.80%	4	222
12	Maurice Philippe	1.67%	10	600
13	Dave Baldwin	1.65%	2	121
14	Tim Wadrop	1.59%	1	63
15	Peter Berthon	1.56%	1	64
16	Eddie Strait	1.25%	1	80
17	Neil Oatley	1.06%	2	189
17	Patrick Head	1.06%	2	189
19	Frank Costin	1.04%	1	96
20	Len Terry	1.01%	2	198
21	Frank Dernie	1.01%	2	199
22	Aurelio Lampredi	0.91%	4	441
23	Ron Tauranac	0.89%	6	672
24	Dante Giacosa	0.88%	1	113
24	Peter Connew	0.88%	1	113
26	John Surtees	0.86%	3	347
27	Shahab Ahmed	0.83%	1	121
28	John Baldwin	0.79%	1	126
29	John Gentry	0.72%	1	139
29	Ken Sears	0.72%	1	139
31	Mauro Forghieri	0.69%	4	582
32	Martin Ogilvie	0.68%	2	292
33	Ernesto Maserati	0.68%	2	294
34	Alberto Massimino	0.65%	1	153
35	Colin Chapman	0.65%	12	1848
36	David North	0.64%	1	157
37	Gordon Coppuck	0.61%	3	495
38	Dave Wass	0.53%	2	380
39	Am�d�e Gordini	0.52%	2	386
40	Gordon Murray	0.50%	2	404
41	Tony Southgate	0.45%	3	671
42	Robin Herd	0.42%	3	715
43	Harvey Postlethwaite	0.35%	1	289
44	Peter Wright	0.34%	1	296
45	Vittorio Bellentani	0.32%	2	621
46	Ralph Bellamy	0.27%	1	369
47	Owen Maddock	0.18%	2	1106
48	Gioacchino Colombo	0.14%	1	726

Finishing position: