When is the 20 km de Paris 2027?

The 2027 date is not announced yet. The 48th edition took place on Sunday 11 October 2026, starting at 9 am on the Pont d'Iéna and finishing at the Eiffel Tower.

How do you enter the 20 km de Paris?

Online, through the official website. For 2026, bibs were sold in price tiers from €55 to €71, and the race was full. Bib transfers were not allowed. The 2027 registration opening is not published yet.

Is there a time limit at the 20 km de Paris?

Yes: 2h50 to complete the 20 km, from your own start time. Beyond that, the end-of-race vehicle may ask runners to leave the race; anyone who carries on does so on the pavement, following the highway code.

Les 20 km de Paris: how many weeks of preparation?

For an athlete at intermediate level, Endu builds a 13-week preparation. If your race is closer, the plan compresses phases while keeping the taper; if it's further away, it lengthens the preparation, and when the gap is large the preparation starts right away, gently and at your current volume, before building up.

How many sessions per week?

This example has 4 sessions per week. You choose 3 to 7 training days and the exact days (e.g. Tue, Thu, Sat, Sun): the plan sticks to them.

I'm a beginner, is this plan for me?

The plan adapts to your declared level (beginner to semi-pro): starting volume, progression and intensity change. Endu also offers a "Discovery" mode without a race to build a base first.

Can I follow sessions on my watch?

Yes, on Garmin and COROS. On Garmin, the Endu app (Connect IQ Store) shows today’s session and starts it as a guided workout. On COROS, link your account from your profile: your running, trail and cycling sessions land in the watch calendar. Other brands are not supported yet.

How much does it cost?

14-day free trial, then €7.99/month with no commitment or €59.88/year (€4.99/month). Unlimited objectives and sports.

Les 20 km de Paris 2027: date, course and training plan

20 kmParis2027 edition: 10 October 2027

The Harmonie Mutuelle 20 km de Paris held its 48th edition on Sunday 11 October 2026; the 2027 date is not announced yet. A single 20 km loop through western Paris: start on the Pont d'Iéna, past the Trocadéro, the Arc de Triomphe and the Bois de Boulogne, back along the Seine and a finish at the foot of the Eiffel Tower. The race holds a World Athletics Road Race Label and the FFA International label.

Your plan for Les 20 km de Paris

49 weeks to go: your plan starts this week, set to your level and free days, then adapts to your feedback after each session.

Your level?

14-day trial, cancel anytime.

Les 20 km de Paris at a glance

Date: 2027 edition: 10 October 2027
Formats: 20 km de ParisPlan below — 20 km on road, a single loop. 9 am start on the Pont d'Iéna, in 60 waves of 500 runners two minutes apart; finish at the Eiffel Tower. Time limit: 2h50 from your own start time. Aid stations at km 3, 6, 10, 12, 15 and 18 and at the finish. Open to adults (born before 12 October 2008 for the 2026 edition). €55 to €71 in 2026 depending on when you entered, €52 for FFA licence holders.
20 km de Paris connecté — A remote version over 5, 10, 15 or 20 km, run wherever you like.
Registration: In 2026, bibs were sold in price tiers: €55 for the first 2,000, then €59, €65 and €71 until sold out, with a fixed €52 for FFA licence holders and discounts for pairs and teams of four. An FFA licence (Athlé Compétition, Entreprise or Running) or a PPS health pass was required, entered in your registration file. Bibs could not be transferred, except through an official resale platform. Bibs were collected at the race village on Friday and Saturday, never on Sunday. The 2027 registration opening is not announced yet.
Official website: harmonie-mutuelle.20kmparis.com

The 2026 course

Start on the Pont d'Iéna. The course heads up to the Trocadéro, on to the Arc de Triomphe and into the Bois de Boulogne, following the Allée de Longchamp and the Allée de la Reine-Marguerite for about 4 km. Leaving the woods, it runs past Roland-Garros along Boulevard d'Auteuil, takes Boulevard Murat at Porte Molitor to the Porte de Saint-Cloud roundabout, then drops down to the river. It then follows the Seine, past the Maison de la Radio, the Trocadéro, the Grand Palais, Place de la Concorde and the Tuileries, to the Pont Royal, crosses the river and comes back along the Left Bank embankments to Quai Branly. Finish at the Eiffel Tower.

What the race asks of your training

A pace close to half-marathon pace

Twenty kilometres are run only slightly faster than a half marathon: a long effort, just below threshold. The core of the build-up is threshold sessions (blocks of 8 to 15 minutes) and one long run a week, finishing at your target pace.

A fast course

The organisers describe a fast course with few changes of pace. You spend about 4 km in the Bois de Boulogne, then a short descent leads to the Seine embankments, which you follow to the finish. No big climb to prepare for: focus on running evenly, learning to hold a steady pace on the flat.

Starting in your wave

The 60 waves set off every two minutes, and each runner is timed from their own start. No need to wear yourself out overtaking in the first kilometre: start at your own pace and pick it up after halfway if you can. The 2h50 limit leaves room for beginners, including those who mix running and walking.

Six aid stations

Water, fruit and sugar at km 3, 6, 10, 12, 15 and 18. If you plan to take a drink or a gel during the race, try them on your long runs, and practise drinking without stopping.

The plan below prepares the 20 km de Paris format, for an athlete at intermediate level with 4 days available per week, with race day on 10 October 2027. Aiming for another format? Enter its distance when you create your plan, which will be calibrated on your level, your available days and your feedback after every session.

weeks: 13
sessions: 52
sessions / week: 4
peak week: 4.9 h

Plan structure

Periodised in phases: build the base, move to race-specific work, then taper before the race.

General preparation
Weeks 1–2 · 2 wk
Base
Weeks 3–5 · 3 wk
Build
Weeks 6–7 · 2 wk
Specific
Weeks 8–10 · 3 wk
Taper
Weeks 11–12 · 2 wk
Race week
Weeks 13–13 · 1 wk

Volume progression

Week by week: lighter recovery weeks are built in to absorb the load.

Wk	Phase	Hours	km
1	General preparation	2.8 h	28
2	General preparation	3 h	30
3	Baserecovery	2.4 h	23
4	Base	3.3 h	33
5	Base	3.6 h	36
6	Build	3.8 h	40
7	Buildrecovery	3 h	30
8	Specific	4.2 h	42
9	Specific	4.5 h	45
10	Specific	4.9 h	49
11	Taper	3.5 h	34
12	Taper	2.7 h	26
13	Race week	2.3 h	22

Sample week — week 8 (Specific)

Real sessions from the plan with their targets. Each session is detailed step by step, and can be sent to a Garmin or COROS watch.

MondayEasy
51 min easy
51 min · 8.2 km
TuesdayVery hard
6 × 800 m at MAS
2 min jog recovery
57 min · 10.8 km
WednesdayEasy
51 min easy
51 min · 8.2 km
SundayModerate
Long run 1 h 31
last 11 min at marathon pace
1 h 31 · 15.1 km

Example generated for a intermediate-level profile (MAS 15 km/h, 4 days available per week). Your plan will depend on your level, availability and feedback.

This plan’s check-up

Pass

A 13-week build (recommended minimum: 8); a longest run never more than 10% above the previous month’s; volume rising at most 11% from one week to the next; 90% of the time at easy effort; a taper cutting volume by 53% in race week.

2 worth knowing · 15 checks passed

Remarks

Strength training — No strength session.
Fueling — Long sessions (up to 105 min in this plan) are where race fueling is rehearsed.

The 15 checks passed, in detail

Length of the build — 13 weeks: enough for this race (recommended minimum: 8).
Sessions per week — 4 sessions a week: the minimum for this race is met.
Volume progression — Running volume rises at most 11% from one week to the next (a signal appears beyond 20%).
Long run increase — Each week, the longest run is at most 10% longer than the longest of the previous month (benchmark: 10%).
Lighter weeks — A lighter week comes back regularly (weeks 3, 7, 11).
Weight of the long run — The long run keeps a reasonable share of the week.
Intensity distribution — About 90% of the time at easy effort: the most common distribution among trained endurance athletes.
Demanding sessions — No more than 2 demanding session(s) a week: suited to the level.
Hard days back to back — Demanding sessions are separated by easy days.
Rest days — At least one rest day a week.
Easy run pace — Easy runs are truly easy (slower than 5:43/km).
Race-specific work — 7 race-specific sessions in the last block.
Taper — Volume drops 53% in race week.
Intensity during the taper — Short race-pace efforts remain in the last two weeks.
Frequency during the taper — The number of sessions stays close to usual (100%).

Endu runs its own plans through the plan check open to everyone: same public rules, same thresholds, same sources. The rules and their sources, and a check of your own plan.

Why this plan works

Science-based periodisation

Base → build → specific → taper, with a recovery week every 3 to 4 weeks. Load goes up, but never two hard weeks in a row without a breather.

Paces, not vague feelings

Every session has target zones (pace, HR) computed from your MAS or a reference performance. A MAS test is built into the plan if you don't know yours.

A plan that listens

After each session you rate how it felt (RPE). Too hard? The plan eases what follows. Skipped a session? It reschedules or absorbs it.

On your watch

On Garmin with the Endu app, on COROS by direct sync: the guided workout shows up on your wrist, step by step.

Reviews

What our users say.

4.8/5

“I used to spend more time looking for a plan than following one. Now I have my sessions, I know what to do and I stick to it. Really glad I tried it.”
Thomas · Running
“Training for my first half marathon and honestly, I’m getting into it! I even look at my next sessions ahead of time, when before I was mostly looking for an excuse not to go out 😂”
Camille · Running
“Simple to follow and really handy with the watch. I start my session and off I go.”
Julien · Running
“I took Endu to prepare a trail race with friends. I really like having my week already organised: it motivates me and I enjoy my runs more.”
Émilie · Trail
“What I like is no longer asking myself a thousand questions before going for a run. I follow the plan and I enjoy training.”
Nicolas · Trail
“With work and the kids, I thought I’d struggle to follow a plan. In the end, having a structure helps me a lot. Running has found a real place in my week again, and it feels good!”
Julie · Trail
“A good find to prepare my swimrun! It’s nice to find a plan for this sport. I’ve recommended it to my teammate.”
Antoine · Swimrun
“I run more regularly and, above all, with more desire. For that alone, I’m delighted.”
Laura · Swimrun
“For triathlon, having all three sports in the same schedule really makes my life easier. I spend less time organising my training and I still enjoy following it just as much.”
Maxime · Triathlon
“At first I just wanted to try it. Now checking the next day’s session has become my little evening ritual 😊”
Sarah · Triathlon

Your plan, not a template athlete's

This plan is generated for an athlete at intermediate level with 4 days available per week. Yours will be calibrated on your MAS, your available days and your feedback after every session. 3 minutes. 14-day trial, cancel anytime.

Create my plan for Les 20 km de Paris