Debutants
Patrick Hosotte is the youngest debutant in Grosser Preis des Kantons Aargau in 1978. There are 27 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | HOSOTTE Patrick | Velda - Lano - Flandria | 21y + 7d |
| 2 | VAN DER VELDE Johan | TI - Raleigh | 21y + 232d |
| 3 | BEVILACQUA Leonardo | Gis Gelati | 22y + 112d |
| 4 | DIERICKX Oscar | Safir - Beyers - Ludo | 22y + 162d |
| 5 | VANDENBRANDE Jean-Philippe | Safir - Beyers - Ludo | 22y + 240d |
| 6 | DEVOS Hendrik | Velda - Lano - Flandria | 22y + 292d |
| 7 | MAGONI Diego | Willora - Mairag - Piz Buin | 23y + 128d |
| 8 | CORTI Claudio | Zonca | 23y + 153d |
| 9 | WEHRLI Josef | Willora - Mairag - Piz Buin | 23y + 241d |
| 10 | SCHMUTZ Gottfried | Willora - Mairag - Piz Buin | 23y + 279d |
| 11 | BETZ Heinz | Willora - Mairag - Piz Buin | 23y + 306d |
| 12 | PRINSEN Ad | Bode Deuren - Shimano | 23y + 314d |
| 13 | VANDENBRANDE Hendrik | Safir - Beyers - Ludo | 24y + 109d |
| 14 | SCHEUNEMANN Bert | Bode Deuren - Shimano | 24y + 110d |
| 15 | KELLER Fridolin | Bode Deuren - Shimano | 24y + 127d |
| 16 | TORELLI Claudio | Zonca | 24y + 190d |
| 17 | MAZZANTINI Leonardo | Zonca | 24y + 329d |
| 18 | LANDONI Gabriele | Gis Gelati | 25y + 130d |
| 19 | BETZ Werner | Willora - Mairag - Piz Buin | 25y + 202d |
| 20 | GEVERS André | TI - Raleigh | 25y + 347d |
| 21 | FRACCARO Simone | Sanson | 26y + 212d |
| 22 | KRAFT Jürgen | Teka | 26y + 248d |
| 23 | MOSER Francesco | Sanson | 27y + 43d |
| 24 | HUISJES Jan | TI - Raleigh | 27y + 102d |
| 25 | GAVAZZI Pierino | Zonca | 27y + 240d |
| 26 | VÖGELE Meinrad | Willora - Mairag - Piz Buin | 29y + 44d |
| 27 | THALER Klaus-Peter | TI - Raleigh | 29y + 79d |