
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. 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
3:54:49
Time difference: -5.2 minutes compared to a flat, road, temperate course.
On our difficulty model, Marathon Project (Pro) plays about even with an average road marathon for a 3:30 runner. It ranks #943 hardest of 1150 marathons we analyse, and #444 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Marathon Project (Pro) | Difference |
|---|---|---|
| 3:00:00 | 2:55:22 | −04:38 |
| 3:30:00 | 3:25:07 | −04:53 |
| 4:00:00 | 3:54:49 | −05:11 |
| 4:30:00 | 4:24:27 | −05:33 |
| 5:00:00 | 4:54:03 | −05:57 |
| 5:30:00 | 5:23:36 | −06:24 |
| 6:00:00 | 5:53:06 | −06:54 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Marathon Project (Pro) is a full marathon held in Chandler, United States of America. It is scheduled for Sunday 13 December 2026. The course is run on road surface with 44m of total climbing, with its high point near 348m above sea level.
This is a very flat course, with only 44m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Marathon Project (Pro) is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
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.
If Marathon Project (Pro) fits your goal, these courses play out about the same on our difficulty model.
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