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 Ottawa City Hall. The marathon was first held in 1975, and is categorized as an Elite Label Road Race by World Athletics. Over 40,000 participants take part in the races each year.

Deriba Merga Ejigu is an Ethiopian professional long-distance runner. He mainly competes in the marathon. He finished fourth in that event at the 2008 Beijing Olympics and went on to win the Boston Marathon the following year. His personal best for the distance is 2:06:38 hours.