The Kristinarun is a running event that is arranged in Tønsberg and arranged by the local athletic club: Tønsberg Friidrettsklubb. The first time this event was arranged was summer 1981.

There running event consists of different distances, like 10 km and 5 km. The event has also a race for children called "The childrens Kristinarace".

The race name is based upon Kristina av Tunsberg.

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