South Texas International Marathon

South Texas International Marathon 2026 Course Analysis

South Texas International Marathon is a full marathon held in McAllen, United States of America. It is scheduled for Monday 7 December 2026. The course is run on road surface with 52m of total climbing, with its high point near 30m above sea level. For registration and full race details, visit the official South Texas International Marathon website.

Elevation Profile

This is a very flat course, with only 52m 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.

Expected Race Day Weather

Based on historical weather data for December, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 17°C and 32°C. Heat is one of the biggest performance factors in distance running - for every degree above 15°C, finish times can slow by roughly 1-2%. Extra hydration and a conservative start are strongly recommended. There is a low chance of rain (2%), so dry conditions are likely.

Surface Type: Road

South Texas International 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 South Texas International Marathon against other marathons to find the right race for your goals.