
Smyrna, United States of America · Saturday 31 October 2026
The event takes place on a 42.195-kilometer course entirely along a paved, multi-use rail trail in Mableton, Georgia, with no unpaved segments or significant elevation changes between the start and finish points. The terrain is almost uniformly *flat and fast*, with the start and finish at an elevation of about 314 meters above sea level, the lowest point at 278 meters, and the highest at 335 meters totaling a modest elevation gain of approximately 235 meters and loss of 247 meters over the cour
Adjusted Time
3:59:33
Time difference: -0.4 minutes compared to a flat, road, temperate course.
Silver Comet Marathon is a full marathon held in Smyrna, United States of America, scheduled for Saturday 31 October 2026. The course is run on road surface with 236m of total elevation gain, reaching a maximum altitude of 320m above sea level. For registration and full race details, visit the official Silver Comet Marathon website.
With 236m of elevation gain, this is a moderately undulating course. The route ranges from 274m to 320m above sea level (46m 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 October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 5°C to 22°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (2%), so dry conditions are likely.
Silver Comet 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 Silver Comet 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 Silver Comet Marathon against other marathons to find the right race for your goals.
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