Ottawa Race Weekend
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The Ottawa Race Weekend is an annual weekend of road running events held the last weekend of May in the city of Ottawa, Ontario, Canada. The two-day running event includes seven races, including the Ottawa Marathon, all of which start and end at... Wikipedia
Date: 4th weekend of May
Distance: Marathon, Half marathon, 10K run, 5K run, 2K, 1.2K Kids Marathon
Participants: 2,776 marathon finishers (2019); 9,755 (2019)
Primary sponsor: Tamarack