Weather & conditions at Marji Gesick
Marji Gesick 100 runs in mid-to-late september in Marquette to Ishpeming, Michigan, USA. Course conditions and weather variability directly change how much you need to drink, how much sodium you lose, and how well you can absorb carbohydrate on the bike.
Temperature swing
Late-September U.P. can start below 40 °F, climb to 70 °F at midday and drop back near freezing after dark. Cold-hour thirst suppression is a real risk.
Why generic fueling plans don't work for Marji Gesick
Two riders on the same start line can need very different fueling. FTP, target finish time, body mass, sweat rate, temperature, altitude adaptation, nutrition products and race goals all change the answer. A generic 60 g/hr recommendation is a starting point, not a plan.
- FTP
- Finish time
- Body weight
- Sweat rate
- Weather
- Products
- Goals
- Course
Download the Printable Marji Gesick 100 Race Guide
Get a practical planning document with the course breakdown, aid-station strategy, fueling and hydration worksheets, race-morning timeline, equipment checklist, crew notes, and space for your own plan.
Frequently asked questions
Generic fueling plans don't work for Marji Gesick.
Every athlete is different. FTP, finish time, body weight, sweat rate, weather, nutrition preferences and race goals all change what you should eat and drink.
FuelQ Pro builds a personalized race fueling strategy tuned to your ride — carbohydrate, hydration, sodium, caffeine and recovery, mapped to the course.
Start with the free checklist
A Race Fueling Plan gives you a personalized strategy for this event. The free checklist helps you prepare the basics first: race-week setup, 48-hour prep, race morning, hydration, sodium, caffeine, aid stations, and backup calories.
