
Louisville, United States of America · Saturday 11 July 2026
The marathon event commonly referred to as the Louisville Marathon is known as the Kentucky Derby Festival Marathon. It is held annually during the Kentucky Derby Festival, a multi-week cultural celebration that precedes the famous horse race in Louisville, Kentucky. The event began as a small, local road race in 1974 and has grown into the largest single day of road racing in Kentucky history, now attracting thousands of participants from all 50 states and international runners each year.\n\nTh
Adjusted Time
3:58:33
Time difference: -1.5 minutes compared to a flat, road, temperate course.
Louisville Marathon is a full marathon held in Louisville, United States of America, scheduled for Saturday 11 July 2026. The course is run on road surface with 293m of total elevation gain, reaching a maximum altitude of 214m above sea level. For registration and full race details, visit the official Louisville Marathon website.
With 293m of elevation gain, this is a moderately undulating course. The route ranges from 152m to 214m above sea level (62m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Based on historical weather data for July, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 6°C to 10°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 (54%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Louisville 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 Louisville 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 Louisville Marathon against other marathons to find the right race for your goals.
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