Most wins
Which rider has the most victories to their name this season before the start of GP du canton d'Argovie 1989?
| # | Rider | Victories | |
|---|---|---|---|
| 1 | GÖLZ Rolf | 3 | |
| 2 | SØRENSEN Rolf | 2 | |
| 3 | CORNILLET Bruno | 1 | |
| 4 | FREULER Urs | 1 | |
| 5 | GIANETTI Mauro | 1 | |
| 6 | JOHO Stephan | 1 | |
| 7 | ROES Peter | 1 | |
| 8 | ROSOLA Paolo | 1 | |
| 9 | WEGMULLER Thomas | 1 | |
| 10 | WILSON Michael | 1 |