Semi-Marathon de Paris 2027: date, course and training plan
The HOKA Semi de Paris is run on Sunday 7 March 2027, four weeks before the Paris Marathon (4 April 2027). First held in 1993, it is organised from 2027 by Cadence Running United, which changes the course every year: the stated aim is to pass through all twenty arrondissements in four editions. The 2027 route will only be revealed early in 2027. The organisers report 110,000 entries for the ballot.
Your plan for Semi-Marathon de Paris
18 weeks to go: your plan starts this week, set to your level and free days, then adapts to your feedback after each session.
Your goal time?
14-day trial, cancel anytime.
Semi-Marathon de Paris at a glance
- Date
- 2027 edition: 7 March 2027
- Formats
- Semi-marathonPlan below — 21.1 km on road through Paris, on Sunday 7 March 2027. A new course every year; the 2027 start, finish, timings and aid stations are not published yet. General entry €79 in 2027, a specific price for 2026-2027 FFA licence holders, and 1,000 Passerelle bibs at €25 for eligible runners.
- Registration
- Bibs for 2027 go through a ballot, open from 8 to 30 September 2026, free and with no advantage for early entrants; you could enter alone or in a team of 2 to 6. Results are emailed from 1 October: a runner drawn has 72 hours to register and pay for the bib (€79 general entry), otherwise the place goes to someone else, and further draws may follow. Without a bib, the options are the Dossards Engagés (running for a charity by reaching a fundraising target), corporate packages and the official resale platform, announced for 1 December 2026. Bibs are in the runner’s name. The medical paperwork (PPS health pass or licence) will be confirmed before the race.
- Official website
- hokasemimarathondeparis.com/fr
What the race asks of your training
A build-up in the depths of winter
With the race on 7 March, a twelve-week build-up starts in mid-December and runs through the holidays, the cold and the short days. Put your long runs at the weekend, in daylight, and keep the threshold and half-marathon-pace sessions for January and February, when consistency matters most.
A course that changes every year
The organisers change the route every edition and warn that it may include a climb, a drag, cobbles and long straights. Until the 2027 course is published, prepare for varied ground: a few short hills in your easy runs, and half-marathon-pace reps on routes with turns and changes of rhythm, not only on a track or a flat road.
A very crowded start
With 110,000 entries for the ballot, the start will be crowded. Settle your target pace in training, on your last half-marathon-pace sessions, and hold it from the first kilometre without trying to win back time lost in the crowd. The aid station locations will be published before the race: until then, test in training the drink and gels you plan to use.
The plan below prepares the Semi-marathon format, for an athlete at intermediate level with 4 days available per week, with race day on 7 March 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 preparationWeeks 1–2 · 2 wk
- BaseWeeks 3–5 · 3 wk
- BuildWeeks 6–7 · 2 wk
- SpecificWeeks 8–10 · 3 wk
- TaperWeeks 11–12 · 2 wk
- Race weekWeeks 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.
- MondayEasy51 min easy51 min · 8.2 km
- TuesdayVery hard6 × 800 m at MAS2 min jog recovery57 min · 10.8 km
- WednesdayEasy51 min easy51 min · 8.2 km
- SundayModerateLong run 1 h 31last 11 min at marathon pace1 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; the longest session 3 weeks before the race; a taper cutting volume by 53% in race week.
2 worth knowing · 16 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 16 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.
Timing of the longest session — The longest session falls 3 weeks before the race: the right time.
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.
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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 Semi-Marathon de Paris14-day trial, cancel anytime.
Frequently asked questions
- When is the 2027 Paris Half Marathon?
- On Sunday 7 March 2027, four weeks before the Paris Marathon, set for 4 April 2027. The start time is not published yet.
- How do you get a bib for the Paris Half?
- Through the ballot, which closed on 30 September 2026: results have been emailed since 1 October and further draws may follow. Otherwise, through a charity Dossard Engagé, a corporate package or the official resale, announced for 1 December 2026.
- What is the 2027 Paris Half course?
- Not yet known: the organisers change the route every year and will reveal the 2027 one early in 2027, along with the start, finish and aid stations.
- How much does the 2027 Paris Half cost?
- €79 for general entry, paid only if you are drawn. There is a specific price for 2026-2027 FFA licence holders, and 1,000 Passerelle bibs at €25 are set aside for eligible runners.
- Semi-Marathon 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.
- Is this plan well built?
- Pass at Endu’s plan check, the same as for any plan: 16 of 16 checks passed. 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; the longest session 3 weeks before the race; a taper cutting volume by 53% in race week. The rules and their sources are public on endu.fr/en/controle-technique.
- 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.
Checked on 10 October 2026 on the organiser's websites. Details can change: the official website prevails.