Siberian International Marathon

Siberian International Marathon (SIM) has been held in the city of Omsk since 1990, when the city was first opened to foreigners. The summer marathon is part of the City Days festivities. It takes place during the week of St. Ilya's Day, the patron saint of Omsk, in early August. The winter half-marathon is during the January 7th Orthodox Christmas week.

SIM official site