Biggest races where rider never competed
Major races where Christian Callens never competed in.
| # | Race | Class |
|---|---|---|
| 1 | Tour de France | 2.PT |
| 2 | World Championships ME - Road Race | WC |
| 3 | Giro d'Italia | 2.PT |
| 4 | Giro di Lombardia | 1.HC |
| 5 | Paris - Nice | 2.PT |
| 6 | Liège - Bastogne - Liège | 1.HC |
| 7 | Ronde van Vlaanderen / Tour des Flandres ME | PT |
| 8 | Amstel Gold Race | 1.HC |
| 9 | Critérium du Dauphiné Libéré | PT |
| 10 | Tirreno-Adriatico | 2.PT |
| 11 | Paris-Bruxelles | 1.HC |
| 12 | Volta Ciclista a Catalunya | 2.PT |
| 13 | Vuelta Ciclista al País Vasco | 2.UWT |
| 14 | Clasica Ciclista San Sebastian | PT |
| 15 | Tour de Romandie | 2.PT |
| 16 | Meisterschaft von Zürich | 1.PT2 |
| 17 | Giro dell'Emilia | 1.HC |
| 18 | Tour of Belgium | 2.1 |
| 19 | Eschborn-Frankfurt City Loop | 1.HC |
| 20 | Critérium International | 2.HC |
| 21 | Milano-Torino | 1.HC |
| 22 | Giro della Toscana | 1.1 |
| 23 | Driedaagse De Panne-Koksijde | 2.HC |
| 24 | Trofeo Laigueglia | 1.1 |
| 25 | GP Ouest France - Plouay | PT |