Races Half marathon · Rueil-Malmaison, France
Semi-Marathon des Lions
Semi-Marathon des Lions is a flat half marathon in Rueil-Malmaison, France, held each March. Two laps of a riverside circuit on the Seine banks at Rueil-Malmaison, starting at the Parc des Bords-de-Seine. The race listing shows about 40 m of climbing in total. Early March near Paris is cool and changeable, with temperatures of 3 to 12°C. The Semi-Marathon des Lions's flat profile means your pacing discipline, not the terrain, decides the day.
Page rebuilt 2026-11-14 · race facts not independently verified — confirm dates and entries on the official race site
When
March
next: Sunday 7 March 2027
Course
flat
Half marathon
Conditions
Early March near Paris is cool and changeable, with temperatures of 3 to 12°C.
Racing this course well
Two laps of a riverside circuit on the Seine banks at Rueil-Malmaison, starting at the Parc des Bords-de-Seine. The race listing shows about 40 m of climbing in total.
The Semi-Marathon des Lions's flat profile means your pacing discipline, not the terrain, decides the day.
Getting a place
- How you get in
- Open entry: first come, first served
- Entries open
- Entries for the next race were open in November 2026
- Price
- €30 for the first 400 bibs, then €35 and €40 (2027 race)
- Places
- 2,000 runners
Official Semi-Marathon des Lions site →Checked November 2026
Race day
- Next race
- Sunday 7 March 2027
- Start time
- 10:30
- Time limit
- 2 hours 40 minutes
- Also on the day
- 10k
The course in numbers
The half marathon is two laps of the main circuit. It runs through the Parc des Bords-de-Seine, past the Blue Green golf course and the Espace Renoir.
- Layout
- Loop
- Surface
- Road
- Total climb
- 40 m
Worth knowing
- The race is run by the Lions Club of Rueil-Malmaison, and the organiser says 80% of each entry goes to charitable causes.
- Adults without a licence need a Pass Prévention Santé costing €5 from the FFA site.
Pick your goal for Rueil-Malmaison
Pace charts, weekly structure and timelines for the most common half marathon goals:
The date shown is the one the organiser has announced. Change it if yours differs.
Build your training around Semi-Marathon des Lions.
RunV works backwards from race day to today. Your plan adapts when life interrupts, and you approve every change. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Semi-Marathon des Lions?
- The next Semi-Marathon des Lions is on Sunday 7 March 2027 in Rueil-Malmaison, France. It is held each March.
- Is the Semi-Marathon des Lions course flat?
- Two laps of a riverside circuit on the Seine banks at Rueil-Malmaison, starting at the Parc des Bords-de-Seine. The race listing shows about 40 m of climbing in total.
- How do I enter the Semi-Marathon des Lions?
- Open entry: first come, first served. Entries for the next race were open in November 2026. Price: €30 for the first 400 bibs, then €35 and €40 (2027 race).
- How should I train for the Semi-Marathon des Lions?
- Build for the course you'll actually race at the Semi-Marathon des Lions: flat terrain, March conditions. RunV Premium builds a training plan around your goal time and race date, and lets you adapt it when life interrupts the Rueil-Malmaison build.
Not sure what to target? Predict your half marathon time from a recent race →
More half marathon races
Supplements research for this distance
Build for Rueil-Malmaison — around your actual life
RunV engineers your block backwards from race day in March — and adapts it when training doesn't go to script. You approve every change.
