18th Place Finish Ratio

until 1988 Mexican 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	Sponsor	18th Place Finish Ratio	18th Place Finishes	Entries
1	National Organs	100.00%	1	1
2	ABMTM	9.09%	1	11
	Apollon	9.09%	1	11
	Belle Vue	9.09%	1	11
5	Samson	5.00%	1	20
6	Lavazza	4.55%	1	22
7	BAF	3.85%	1	26
8	F&S Properties	3.45%	1	29
9	HB Alarmsystemen	2.78%	1	36
10	UOP	1.67%	2	120
11	Brooke Bond Oxo	1.54%	1	65
12	Motul	1.32%	1	76
13	Copersucar	1.15%	1	87
14	Pininfarina	1.11%	1	90
15	Tabatip	1.01%	1	99
16	First National City	0.87%	1	115
17	Texaco	0.80%	2	249
18	Fiat	0.79%	3	380
19	Longines	0.68%	2	295
20	Yardley	0.67%	1	149
21	Firestone	0.63%	2	319
22	Beta	0.62%	1	160
23	Olivetti	0.54%	1	184
24	Personal	0.50%	1	200
25	Brembo	0.42%	1	239
26	Saudia	0.42%	1	240
27	Agip	0.40%	3	742
28	Speedline	0.36%	1	274
29	Arexons	0.36%	1	278
30	Valvoline	0.35%	2	571
31	Ferodo	0.32%	2	628
32	Heuer	0.27%	1	368
33	SKF	0.26%	1	380
34	John Player Special	0.25%	1	393
35	Goodyear	0.17%	5	2886
36	Michelin	0.16%	1	636
37	Magneti Marelli	0.14%	1	693
38	Koni	0.13%	1	784
39	Marlboro	0.10%	1	956
40	Champion	0.05%	1	2014

Finishing position: