The Belgian National Cyclo-cross Championships were first held in 1910, and have been held annually since 1921 (with a break in 1940 due to World War II) by the Royal Belgian Cycling Federation (KBWB/RLVB).[1] Races are run for elite men, elite women, under 23 men, junior (under 18) men, juvenile men, various masters (amateur over 30) categories and by other organisations catering for veteran riders.