Sudbury Rocks Marathon
Sudbury, Canada · Sunday 24 May 2026
RoadFull Marathon
Sudbury, Ontario sits in the heart of Canada's mining country, a working city in the boreal landscape of northern Ontario. The area has a genuine, no-frills character, with lakes and forests defining the region. Running through Sudbury in May means dealing with spring weather that can still be unpredictable in Canada, so runners should come prepared for variable conditions. The race takes advantage of the local terrain and community, offering a straightforward racing experience without pretense. The Sudbury Rocks Marathon course is flat to gently rolling, which makes it a solid option for runners chasing time or working toward a personal best. You'll stay between 257 and 272 metres of elevation throughout the race, so there are no major climbs to contend with. The route follows roads through the city and surrounding areas, giving you a feel for the landscape and community. Expect a course that lets you settle into a rhythm early and maintain it, though the spring roads and any lingering cool temperatures typical of northern Ontario in May are worth accounting for in your training and pacing strategy.
Difficulty Calculator
h
:m
:s
Adjusted Time
3:49:08
Time difference: -10.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain0m
Elevation High272m
Elevation Low257m
Weather Forecast
High12°C
Low10°C
Chance of Rain88%
Sudbury Rocks Marathon 2026 Course Analysis
Sudbury Rocks Marathon is a full marathon held in Sudbury, Canada, scheduled for Sunday 24 May 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 272m above sea level.
Elevation Profile
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 257m to 272m above sea level — a 15m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Expected Race Day Weather
Based on historical weather data for May, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 10°C to 12°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a high chance of rain (88%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Sudbury Rocks Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
How Difficult Is Sudbury Rocks Marathon?
Our difficulty rating for Sudbury Rocks Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Sudbury Rocks Marathon against other marathons to find the right race for your goals.
Other Marathons in Canada
BMO Vancouver Marathon
Vancouver, Canada
Trail203m gainMay 2023
Vancouver Marathon & Half Marathon
Vancouver, Canada
Trail306m gainMay 2024
Marathon Baie-des-Chaleurs
Carleton-sur-Mer, Canada
Trail88m gainJune 2024
Banff Marathon, Half Marathon and 10K
Banff, Canada
Trail124m gainJune 2024
Blue Nose International Marathon
Halifax, Canada
Road423m gainMay 2025