
Ashland, United States of America · Saturday 10 October 2026
Whistlestop Marathon is an annual long-distance running event that takes place in northern Wisconsin, tracing a route along the Tri-County Corridor between Iron River and Ashland. The race covers the traditional marathon distance, beginning in the rural community of Iron River and concluding in Ashland on the southern shore of Lake Superior, offering runners a primarily gentle decline for much of the course.\n\nThis event is notable for its setting on a converted rail-trail, which historically s
Adjusted Time
3:53:24
Time difference: -6.6 minutes compared to a flat, road, temperate course.
Whistlestop Marathon is a full marathon held in Ashland, United States of America, scheduled for Saturday 10 October 2026. The course is run on road surface with 98m of total elevation gain, reaching a maximum altitude of 360m above sea level. For registration and full race details, visit the official Whistlestop Marathon website.
This is a very flat course with only 98m of total elevation gain across the full distance. The course ranges from 187m to 360m above sea level — a 173m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Based on historical weather data for October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 6°C to 13°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a moderate chance of rain (34%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Whistlestop 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.
Our difficulty rating for Whistlestop 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 Whistlestop Marathon against other marathons to find the right race for your goals.
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