Disqualification Ratio

until 1975 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	Disqualification Ratio	Disqualifications	Entries
1	Morris Nunn	7.41%	2	27
2	Bindo Maserati	6.90%	2	29
2	Ettore Maserati	6.90%	2	29
4	Geoff Ferris	1.73%	3	173
5	Peter Berthon	1.56%	1	64
6	Eddie Strait	1.25%	1	80
7	Len Terry	1.06%	2	189
8	Frank Costin	1.04%	1	96
9	Dave Wass	1.03%	1	97
10	Maurice Philippe	1.01%	4	395
11	John Surtees	1.00%	2	200
12	Shahab Ahmed	0.92%	1	109
13	Aurelio Lampredi	0.91%	4	441
14	Ron Tauranac	0.90%	6	663
15	Peter Connew	0.89%	1	112
16	Dante Giacosa	0.88%	1	113
17	Ernesto Maserati	0.68%	2	294
18	Alberto Massimino	0.65%	1	153
19	Colin Chapman	0.64%	10	1563
20	Robin Herd	0.64%	3	471
21	Tony Southgate	0.60%	2	333
22	Am�d�e Gordini	0.52%	2	386
23	Ralph Bellamy	0.40%	1	252
24	Gordon Coppuck	0.39%	1	256
25	Vittorio Bellentani	0.32%	2	621
26	Mauro Forghieri	0.31%	1	323
27	Owen Maddock	0.18%	2	1106
28	Gioacchino Colombo	0.14%	1	726

Finishing position: