Debutants
Silvano Contini is the youngest debutant in GP du Midi-Libre in 1978. There are 25 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | CONTINI Silvano | Bianchi - Faema | 20y + 150d |
| 2 | VISENTINI Roberto | Vibor | 21y + 12d |
| 3 | VAN CALSTER Guido | C&A | 22y + 128d |
| 4 | SCHEPERS Eddy | C&A | 22y + 184d |
| 5 | VAN VLIET Leo | Miko - Mercier - Hutchinson | 22y + 211d |
| 6 | DEVOS Hendrik | Velda - Lano - Flandria | 22y + 244d |
| 7 | LOOS Ludo | C&A | 23y + 152d |
| 8 | GUTIERREZ Miguel | Teka | 23y + 284d |
| 9 | CEDENA Francisco Javier | Teka | 24y + 93d |
| 10 | LE LAY Gilbert | Fiat - France | 25y + 240d |
| 11 | BUDET Alain | Fiat - France | 25y + 250d |
| 12 | MARTINEZ Paulino | Teka | 25y + 287d |
| 13 | BORTOLOTTO Claudio | Sanson | 26y + 87d |
| 14 | FRACCARO Simone | Sanson | 26y + 164d |
| 15 | KRAFT Jürgen | Teka | 26y + 200d |
| 16 | NILSSON Sven-Åke | Miko - Mercier - Hutchinson | 26y + 274d |
| 17 | LUALDI Valerio | Bianchi - Faema | 26y + 287d |
| 18 | EDWARDS Phil | Sanson | 28y + 284d |
| 19 | FABBRI Fabrizio | Sanson | 29y + 259d |
| 20 | DE MUYNCK Johan | Bianchi - Faema | 30y + 15d |
| 21 | DE SCHOENMAECKER Jos | C&A | 30y + 255d |
| 22 | JANSSENS Ward | C&A | 32y + 147d |
| 23 | SANTAMBROGIO Giacinto | Bianchi - Faema | 33y + 50d |
| 24 | CAVALCANTI Giovanni | Bianchi - Faema | 34y + 209d |
| 25 | GIMONDI Felice | Bianchi - Faema | 35y + 258d |