Irving Frost Marathon
Irving, United States of America · Saturday 19 December 2026
The event course navigates a fast, primarily flat layout through Irving and the Las Colinas area, using a two-loop design for the full marathon distance. Runners encounter modest elevation changes, with a total elevation gain and loss of about 486 feet, moving between a maximum of 443 feet and a minimum of 416 feet above sea level. The route includes multiple out-and-back segments, making pacing and checkpoint management straightforward for participants.
Difficulty Calculator
h
:m
:s
Adjusted Time
3:58:32
Time difference: -1.5 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain148m
Elevation High135m
Elevation Low127m
Weather Forecast
High15°C
Low12°C
Chance of Rain6%
How hard is Irving Frost Marathon?
Moderateharder than 32% of marathons
Flattest / easiestHardest
On our difficulty model, Irving Frost Marathon plays about 3 minutes slower than an average road marathon for a 3:30 runner. It ranks #780 hardest of 1150 marathons we analyse, and #388 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Irving Frost Marathon?
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 Irving Frost Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:57:09 | −02:51 |
| 3:30:00 | 3:27:49 | −02:11 |
| 4:00:00 | 3:58:32 | −01:28 |
| 4:30:00 | 4:29:18 | −00:42 |
| 5:00:00 | 5:00:08 | +00:08 |
| 5:30:00 | 5:31:01 | +01:01 |
| 6:00:00 | 6:01:56 | +01:56 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Irving Frost Marathon 2026 Course Analysis
Irving Frost Marathon is a full marathon held in Irving, United States of America. It is scheduled for Saturday 19 December 2026. The course is run on road surface with 148m of total climbing, with its high point near 135m above sea level. For registration and full race details, visit the official Irving Frost Marathon website.
Elevation Profile
With 148m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for December, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 12°C to 15°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 (6%), so dry conditions are likely.
Surface Type: Road
Irving Frost Marathon 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 Irving Frost Marathon against other marathons to find the right race for your goals.
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