13th Place Finish Ratio

until 1965 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	13th Place Finish Ratio	13th Place Finishes	Entries
1	Shoichi Sano	33.33%	1	3
1	Yoshio Nakamura	33.33%	1	3
3	Doug Serrurier	16.67%	1	6
3	Fred Wilkinson	16.67%	1	6
5	Ron Tauranac	4.13%	5	121
6	Helmut Bott	3.42%	4	117
7	Eric Broadley	3.12%	1	32
8	Tony Rudd	2.35%	4	170
9	Wilhelm Hild	2.22%	3	135
10	Alf Francis	2.08%	1	48
10	John Heath	2.08%	1	48
12	Hans Mezger	1.98%	2	101
13	Owen Maddock	1.96%	21	1071
14	Reid Railton	1.91%	4	209
15	Antonio Lago	1.68%	5	298
15	Carlo Marchetti	1.68%	5	298
17	Geoffrey Taylor	1.67%	1	60
18	Peter Berthon	1.56%	1	64
19	Ernst Loof	1.20%	1	83
20	Mike Oliver	1.15%	3	262
20	Rodney Clarke	1.15%	3	262
22	Colin Chapman	1.03%	9	874
23	Ernesto Maserati	0.68%	2	294
24	Aurelio Lampredi	0.45%	2	441
25	Gioacchino Colombo	0.41%	3	726
26	Vittorio Bellentani	0.32%	2	621
27	Am�d�e Gordini	0.26%	1	386

Finishing position: