Calgary Marathon
Calgary, Canada · Monday 24 May 2027
The Calgary Marathon is recognized as the longest running marathon in Canada, first established in 1963. It originated when Doug Kyle, Canada's fastest runner at the time and an Olympian, decided to create the event to bring the 1964 Olympic marathon trials to Calgary, shifting the typical location from Ontario to Western Canada.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:00:17
Time difference: +0.3 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain133m
Elevation High1071m
Elevation Low1037m
Weather Forecast
High22°C
Low10°C
Chance of Rain4%
How hard is Calgary Marathon?
Moderateharder than 42% of marathons
Flattest / easiestHardest
On our difficulty model, Calgary Marathon plays about 4 minutes slower than an average road marathon for a 3:30 runner. It ranks #669 hardest of 1150 marathons we analyse, and #18 of 51 in Canada. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Calgary Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Calgary Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:58:23 | −01:37 |
| 3:30:00 | 3:29:18 | −00:42 |
| 4:00:00 | 4:00:17 | +00:17 |
| 4:30:00 | 4:31:20 | +01:20 |
| 5:00:00 | 5:02:27 | +02:27 |
| 5:30:00 | 5:33:38 | +03:38 |
| 6:00:00 | 6:04:52 | +04:52 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Calgary Marathon 2027 Course Analysis
Calgary Marathon is a full marathon held in Calgary, Canada. It is scheduled for Monday 24 May 2027. The course is run on road surface with 133m of total climbing, with its high point near 1071m above sea level. For registration and full race details, visit the official Calgary Marathon website.
Elevation Profile
With 133m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for May, the expected race day conditions are as follows. Moderate temperatures between 10°C and 22°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (4%), so dry conditions are likely.
Surface Type: Road
Calgary Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Calgary Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Calgary Marathon fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in Canada
Yukon River Trail Marathon
Whitehorse, Canada
Trail0m gainAug 2026
Tamarack Ottawa Race Weekend
Ottawa, Canada
Road99m gainAug 2026
Edmonton Marathon
Edmonton, Canada
Road154m gainAug 2026
Moose Mountain (Alberta) Marathon
Bragg Creek, Canada
Road0m gainAug 2026
Yellowknife Overlander Marathon
Yellowknife, Canada
Road0m gainAug 2026