Generating a custom race photo…
100K Ultra Trail Run
50K Trail Tun
25K Trail Run
10K Trail Run
5K Trail Run
The Mighty Mammoth 1K Fun Run
PACER - 100K Ultra Trail Run
The Mammoth 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Fun Run
Saturday, October 10, 2026Glen Rose, TX, US
The The Mammoth 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Fun Run is a 100K Ultra Trail Run / 50K Trail Tun / 25K Trail Run / 10K Trail Run / 5K Trail Run / The Mighty Mammoth 1K Fun Run / PACER - 100K Ultra Trail Run race held on Saturday, October 10, 2026 in Glen Rose, TX, US. Explore registration links, course details, and an AI-powered training plan on Traxamo.
What are the key details for The Mammoth 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Fun Run?
| Date | Saturday, October 10, 2026 |
|---|---|
| Location | Glen Rose, TX, US |
| Distances | 100K Ultra Trail Run, 50K Trail Tun, 25K Trail Run, 10K Trail Run, 5K Trail Run, The Mighty Mammoth 1K Fun Run, PACER - 100K Ultra Trail Run |
Race Countdown
129
days to go
18 weeks of training remaining
Today
Basewk 1/2
Build8w
Peak4w
Taper4w
Wrapping up base training (2w left). Start adding a bit of structure before build phase begins.
About this race
Generating a summary for this race…
Race IQ Traxamo AI
Free to play
Generating questions about The Mammoth 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Fun Run…
Typical Race Day Weather
Loading historical weather…
Location
Pin shows the race city. Detailed course maps coming soon.
Runners Also Viewed
Finding similar races…