
Tucson, United States of America · Sunday 13 December 2026
The event takes place annually in December in southern Arizona, beginning near the Biosphere 2 just outside Oracle and finishing at the Pima Community College Northwest Campus in Oro Valley. The marathon features a paved, point-to-point, primarily downhill course that offers a net loss of over 2,000 feet in elevation, making it attractive for runners seeking fast times and Boston Marathon qualification. The initial segment involves some rolling hills and a gentle climb to the gates of the Biosph
Adjusted Time
4:41:51
Time difference: +41.8 minutes compared to a flat, road, temperate course.
Tucson Marathon is a full marathon held in Tucson, United States of America, scheduled for Sunday 13 December 2026. The course is run on trail surface with 80m of total elevation gain, reaching a maximum altitude of 1217m above sea level. For registration and full race details, visit the official Tucson Marathon website.
This is a very flat course with only 80m of total elevation gain across the full distance. The course ranges from 699m to 1217m above sea level — a 518m 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 December, the expected race day conditions are as follows. Moderate temperatures between 18°C and 25°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a low chance of rain (0%), so dry conditions are likely.
Tucson Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are inherently slower than road courses due to uneven footing, technical sections, and often steeper gradients. Trail-specific shoes with good grip are recommended, and runners should expect a finish time 10-20% slower than their equivalent road marathon time.
Our difficulty rating for Tucson 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 Tucson Marathon against other marathons to find the right race for your goals.
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