| As of 2 January 1985 |
| Rk |
Name |
Nation |
| 1 |
John McEnroe |
USA |
| 2 |
Jimmy Connors |
USA |
| 3 |
Ivan Lendl |
TCH |
| 4 |
Mats Wilander |
SWE |
| 5 |
Andrés Gómez |
ECU |
| 6 |
Anders Järryd |
SWE |
| 7 |
Henrik Sundström |
SWE |
| 8 |
Pat Cash |
AUS |
| 9 |
Eliot Teltscher |
USA |
| 10 |
Yannick Noah |
FRA |
| 11 |
Joakim Nyström |
SWE |
| 12 |
Aaron Krickstein |
USA |
| 13 |
Johan Kriek |
USA |
| 14 |
Jimmy Arias |
USA |
| 15 |
Kevin Curren |
RSA |
| 16 |
Tomáš Šmíd |
TCH |
| 17 |
Vitas Gerulaitis |
USA |
| 18 |
Gene Mayer |
USA |
| 19 |
Juan Aguilera |
ESP |
| 20 |
Stefan Edberg |
SWE |
|
| Year-end rankings (30 December 1985) |
| Rk |
Name |
Nation |
High |
Low |
Change |
| 1 |
Ivan Lendl |
TCH |
1 |
3 |
+2 |
| 2 |
John McEnroe |
USA |
1 |
2 |
–1 |
| 3 |
Mats Wilander |
SWE |
3 |
4 |
+1 |
| 4 |
Jimmy Connors |
USA |
2 |
4 |
–2 |
| 5 |
Stefan Edberg |
SWE |
5 |
20 |
+15 |
| 6 |
Boris Becker |
FRG |
6 |
65 |
+59 |
| 7 |
Yannick Noah |
FRA |
7 |
10 |
+3 |
| 8 |
Anders Järryd |
SWE |
6 |
8 |
–2 |
| 9 |
Miloslav Mečíř |
TCH |
9 |
60 |
+51 |
| 10 |
Kevin Curren |
USA |
10 |
15 |
+5 |
| 11 |
Joakim Nyström |
SWE |
|
|
= |
| 12 |
Tim Mayotte |
USA |
|
|
+32 |
| 13 |
Paul Annacone |
USA |
|
|
+84 |
| 14 |
Johan Kriek |
USA |
|
|
–1 |
| 15 |
Andrés Gómez |
ECU |
|
|
–10 |
| 16 |
Henri Leconte |
FRA |
|
|
+10 |
| 17 |
Scott Davis |
USA |
|
|
+31 |
| 18 |
Brad Gilbert |
USA |
|
|
+5 |
| 19 |
Tomáš Šmíd |
TCH |
|
|
–3 |
| 20 |
Martín Jaite |
ARG |
|
|
+35 |
|