The Humarathon is an annual half marathon road running event which takes place between Ivry-sur-Seine and Vitry-sur-Seine in France every Easter Weekend (usually April).

First held in 1986,[1] the race settled on the Ivry- to Vitry-sur-Seine route in the Val-de-Marne department in 1988.

From its first edition, the race attracted international athletes and the winning times throughout its running have been of a high standard.

The Association of Road Racing Statisticians questions the validity of these marks, indicating a short course or wind-assistance, and recognises the best times for the race as Paul Koech's 1996 run of 1:00:31 hours and Mary Keitany's 2007 time of 1:08:36 hours.

[1] The half marathon has a clockwise, circular route which starts near the Parc des Cormailles, heads east to follow the River Seine southwards, goes west through the town of Vitry, turns north on Boulevard de Stalingrad, and then returns east to the Town Hall at Ivry.