Marseille-Cassis takes place on Sun, Oct 25, 2026 in Marseille, France. The main route is 20 km.
- Date
- Sun, Oct 25, 2026
- Start
- Marseille 🇫🇷
- Distance
- 20 km
- Climbing
- 327 m
- Level
- Open to all
Your 3-week plan to Marseille-Cassis
The Taper phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
Build my planFree to start · No credit card
Starting from the Orange Vélodrome in Marseille, this legendary 20km road race leads runners over the demanding Col de la Gineste before finishing in the picturesque port of Cassis.
What this race demands
The Marseille-Cassis demands sustained pacing over a 20 km distance complicated by a significant mid-race climb over the Col de la Gineste.
Climbing volume
Athletes must manage 327 meters of elevation gain, concentrated primarily on the demanding Col de la Gineste crossing.
Endurance capacity
The 20 km distance requires robust aerobic conditioning to sustain forward momentum beyond typical half-marathon preparations.
Descent management
Following the climb to the high point, runners face the challenge of descending toward the port of Cassis without overloading the quadriceps.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
2:00–2:25
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Marseille-Cassis is 3 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper2 weeks · Oct 5, 2026 – Oct 18, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Oct 19, 2026 – Oct 25, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Marseille-Cassis?
Marseille-Cassis takes place on Sun, Oct 25, 2026 in Marseille, France.
How long is Marseille-Cassis?
The main route is 20 km.
What does Marseille-Cassis demand?
The Marseille-Cassis demands sustained pacing over a 20 km distance complicated by a significant mid-race climb over the Col de la Gineste.
How much climbing does Marseille-Cassis have?
Marseille-Cassis has 327 m of climbing.
Who is Marseille-Cassis for?
Marseille-Cassis is open to all participants.
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