Info
| Last name | De Block |
| First name | Marc |
| Nationality |  Belgium |
| Date of birth | 25-07-1945 |
| Age | 80 |
| Place of birth | Schelderode |
Grand tours
| Year | Giro d'Italia | Tour de France | Vuelta a España |
|---|---|---|---|
| 1969 | - | 82nd | - |
| Date | Rank | Race |
|---|---|---|
| 12-12 | 1 | Cyclocross Merelbeke-Melsen (C2) |
| 11-12 | 2 | Duinencross Koksijde (C1) |
| 05-12 | 1 | Cyclocross Deinze (C2) |
| 01-11 | 2 | Cyclocross Sint-Maria-Horebeke (C2) |
| 31-10 | 4 | Cyclocross Adegem (C2) |
| 23-10 | 3 | Cyclocross Erwetegem (C2) |
| 17-10 | 3 | Cyclocross Hansbeke (C2) |
| 03-10 | 1 | Cyclocross Moerbeke (C2) |
| 02-10 | 1 | Cyclocross Schelderode (C2) |
| 19-09 | 1 | Cyclocross Wingene (C2) |
| 22-02 | 1 | Cyclocross Heusden (C2) |
| 21-02 | 1 | Cyclocross Baaigem (C2) |
| 15-02 | 1 | Cyclocross Torhout (C2) |
| 14-02 | 1 | Cyclocross Duffel (C2) |
| 08-02 | 2 | Cyclocross Bertem (C2) |
| 01-02 | 1 | Cyclocross Munte (C2) |
| 25-01 | 5 |  World Championship Cyclocross (CM) |
| 18-01 | 1 | Cyclocross Volkegem (C2) |
| 11-01 | 1 | Belgian National Championships CX (CN) |
| 04-01 | 1 | Cyclocross Ename - Oudenaarde (C2) |
| 03-01 | 1 | Cyclocross Zillebeke (C2) |
Teams
| Year | Team |
|---|---|
| 1978 | Hertekamp |
| 1977 | Hertekamp |
| 1976 | Hertekamp |
| 1975 | Hertekamp |
| 1974 | Hertekamp |
| 1973 | Hertekamp |
| 1972 | Hertekamp |
| 1971 | Hertekamp - Magniflex |
| 1970 | Hertekamp - Magniflex |
| 1969 | Flandria - De Clercq - Kruger |
| 1968 | Flandria - De Clercq - Kruger(from 29-05) |
Victories
| This year | 0 |
| Total | 25 |