Calgary Marathon Calgary Marathon The Scotiabank Calgary Marathon is an annual race held in Calgary, Alberta, Canada .As the longest running marathon event in Canada, it has a certified running distance of 26 miles and 385 yards (42.195 km). Last year's marathon was sold out and approximately 9,000 people are expected to participate this year. The marathon is certified by Athletics Canada and is a registered AIMS Marathon, and therefore can be used as a qualifying marathon race. In late 2013, it was announced that the Calgary Marathon would also host a one-time only 50 kilometer ultramarathon in 2014 to commemorate the
Athletics at the 1908 Summer Olympics – Men's marathon at the Olympic Stadium, the Great White City Stadium in Shepherd's Bush in London. The Polytechnic Harriers were also tasked with organising a Marathon Trial Race, to be run along most of the Olympic Marathon route. By April 1908, a revised map of the course of the Trial Race was published, also showing the intended course of the Olympic Marathon. It had by this time been decided to fix the Olympic Marathon distance at "about 26 miles" to the stadium, plus a lap of the track (), using the Royal Entrance as the marathon tunnel, and finishing at the normal