Ultramarathons in Belgium

28 races tracked — the season peaks in May (7 races), with June close behind (5).

By distance 12 50K · 8 50 mi · 6 100K · 1 Marathon
Biggest field Grand Trail des Lacs et Châteaux Winter — 458 finishers in 2025
Steepest course Trail de la Soupe — 46.2 m/km
Deepest results history Grand Trail des Lacs et Châteaux 85km — 10 recorded editions

Next starts in Belgium

All 9 upcoming →
Fixed Distance50 miRolling
GRIT 7.1

Grand Trail des Lacs et Châteaux Winter

Ovifat, BEL

66 km 2,513 m D+ Nov 7
Timed8 hours
GRIT —

De Warmste Loop - The Warmest Run

Wingene, BEL

Nov 29
Fixed DistanceMarathonMountain
GRIT 5.4

Trail de la Soupe

La-Roche-en-Ardenne, BEL

45 km 2,080 m D+ Nov 29
Fixed Distance100KRolling
GRIT 7.7

Trail du BW - 100km

Chaumont-Gistoux, BEL

100 km 1,780 m D+ Dec 5
Fixed Distance50 miRolling
GRIT 4.9

Trail du BW - 62km

Chaumont-Gistoux, BEL

62 km 1,180 m D+ Dec 6
Fixed Distance50 miRolling
GRIT 6.6

Trail du BW - 84km

Chaumont-Gistoux, BEL

85 km 1,550 m D+ Dec 6
Fixed Distance50KRolling
GRIT 3.6

Meerdaalwoud Trail

Bierbeek, BEL

50 km 750 m D+ Dec 19
Fixed Distance100KRolling
GRIT 10

Les Clochards Célestes

Pepinster, BEL

101 km 3,300 m D+ May 16
Fixed Distance50K
GRIT 2.6

Chouffe Trail - 52 km

Houffalize, BEL

52 km Jul 3