
Chandler, United States of America · Sunday 13 December 2026
This race appeals to runners chasing fast times and personal records. The flat to gently rolling terrain around Chandler means you won't waste energy fighting elevation, and the modest 44-meter elevation gain over the full distance is negligible by marathon standards. If you're aiming for a qualifying standard or simply want to run hard without the burden of significant climbing, this course delivers. It also suits runners preparing for faster marathons elsewhere, offering a chance to practice pacing and execution on forgiving terrain. That said, the real challenge here is likely the December heat. Chandler in Arizona stays warm even in winter, and you'll need to manage your effort accordingly. The flatness means less shade and less natural variation to break up the mental monotony of 42 kilometers. The course itself won't surprise you with dramatic features or distracting scenery. You're running through a suburban area that, while functional and well-organized, lacks the visual interest that carries some runners through tough miles. The road surface is standard pavement, nothing exceptional. The bigger practical hurdle is pacing discipline. Fast, flat courses tempt runners to go out too hard, and the desert heat compounds that mistake quickly. Come in well-trained, respect the temperature, and stick to your plan. For runners who thrive on straightforward, honest courses where fitness and mental toughness matter more than scenery or topography, Marathon Project Pro delivers exactly what it promises. Just don't underestimate the heat or the psychological grind of running 42 kilometers without much natural variation to break up the effort.
Adjusted Time
3:54:01
Time difference: -6.0 minutes compared to a flat, road, temperate course.
Marathon Project (Pro) is a full marathon held in Chandler, United States of America, scheduled for Sunday 13 December 2026. The course is run on road surface with 44m of total elevation gain, reaching a maximum altitude of 348m above sea level.
This is a very flat course with only 44m of total elevation gain across the full distance. The course ranges from 346m to 348m above sea level — a 2m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Marathon Project (Pro) 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 Marathon Project (Pro) 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 Marathon Project (Pro) against other marathons to find the right race for your goals.
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