This year I ran the DREADMILL challenge. 100 Miles. ON. A. TREADMILL. Yeah....crazy. Listen to the podcast to find out what worked for me.
This was my fueling strategy:
2 Hours on the treadmill between breaks (the treadmill reset at 60 minutes)
1st hour - eFuel (210 Calories)
2nd Hour - Nuun (90 Calories) and a Spring Energy Gel (100-150 Calories)
Then a short break to use the restroom and refill bottles. Repeat until done.
Also on this podcast is a New Year Challenge.
Book I referenced (affiliate link):
Apps I'm using