20th Place Finish Ratio

until 2012 Chinese 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	Driver	20th Place Finish Ratio	20th Place Finishes	Races
1	Steve Ouvaroff	100.00%	1	1
2	Charles Pic	66.67%	2	3
3	Frank Curtis	33.33%	1	3
3	Manny Ayulo	33.33%	1	3
5	Spider Webb	25.00%	1	4
6	Jérôme d'Ambrosio	21.05%	4	19
7	Sakon Yamamoto	19.05%	4	21
8	Karun Chandhok	18.18%	2	11
9	Mike Taylor	16.67%	1	6
10	Geoff Crossley	11.11%	1	9
11	Daniel Ricciardo	7.14%	1	14
12	Guy Edwards	5.26%	2	38
12	Lucas di Grassi	5.26%	1	19
14	Eric Brandon	4.76%	1	21
15	Vitantonio Liuzzi	3.70%	3	81
16	Alan Brown	3.57%	1	28
17	Bruno Senna	3.45%	1	29
17	David Hampshire	3.45%	1	29
19	Narain Karthikeyan	3.23%	1	31
20	Timo Glock	2.56%	2	78
21	Karl Wendlinger	2.38%	1	42
22	Eugène Chaboud	2.04%	1	49
23	Christian Klien	1.96%	1	51
24	Henri Pescarolo	1.30%	1	77
25	Alan Jones	0.81%	1	124
26	Ayrton Senna	0.62%	1	162
27	Jack Brabham	0.46%	1	217
28	Jarno Trulli	0.39%	1	256

Finishing position: