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May 30, 2027
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The Calgary Marathon is a road marathon through Calgary, Alberta, held on a Sunday in late May as part of a two-day race weekend run by Run Calgary, a non-profit also known as the Calgary Marathon Society. The first Calgary Marathon was run on 10 August 1963, when nineteen men started at Glenmore Stadium, and the organisers present it as Canada's longest-running marathon. The 2027 marathon is on Sunday 30 May at 6:45 a.m., with the half marathon the same morning and the 5K and 10K on the Saturday. The route changes from year to year. In 2026 the marathon started near Stampede Park on 11 Avenue SE, ran clockwise through East Village, across the Centre Street Bridge and through Bridgeland and Inglewood, then west along Memorial Drive to an out-and-back section in Bowness, returning to finish in Enmax Park beside Stampede Park. The 2027 start line is still to be announced, but the finish will again be in Enmax Park. The course is certified by Athletics Alberta and Athletics Canada, and the race can be used to qualify for the Boston Marathon and the Abbott World Marathon Majors age-group rankings. The time limit for the marathon is 6 hours 30 minutes.
Typical climate for the race month — an estimate, not a forecast or a race-day record
Late May in Calgary averages a daytime high of about 16°C and a low of about 3°C, with measurable precipitation on roughly eleven days of the month; the race starts at 6:45 a.m., when it is at its coolest.
The Race
Calgary
The first Calgary Marathon was run on 10 August 1963, when nineteen men lined up at Glenmore Stadium. It was co-founded by the two-time Olympian Doug Kyle and runner Bill Wyllie, and Kyle won in 2:45:54. The following year Calgary hosted the Canadian Championships and the Olympic marathon time trials. After the first race the marathon was held intermittently before becoming an annual event in 1971.
The organisers redraw the route most years. In 2026 the marathon and half marathon reversed the first eight kilometres, running clockwise through East Village, Bridgeland and Inglewood instead of the other way round. The race had moved to a two-day weekend the year before, with the 5K and 10K on Saturday and the half marathon and marathon on Sunday.
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