Triathlon du Mans 2027: date, course and training plan
The Le Mans triathlon has been run since 1983 by the Le Mans Triathlon club, in mid-July, around the Abbaye Royale de l’Épau, the Gué Bernisson and the Arche de la Nature. You swim in the Lac des Sablons with the end of the swim in the river, ride on the roads east of Le Mans and run on paths. In 2026, nearly 1,300 triathletes were expected over the weekend, from the youth races to the M.
Your plan for Triathlon du Mans
A plan set to your level and free days, which adapts to your feedback after each session.
Your level?
14-day trial, cancel anytime.
Triathlon du Mans at a glance
- Date
- 2027 edition: date not announced yet2026 edition: 12 July 2026
- Formats
- Triathlon MPlan below — 1.5 km swim (two laps of the buoys then 100 m in the river), 42 km bike in two loops (about 160 m of climbing per loop on the map), 10 km run in four 2.5 km laps. Sunday at 2 pm in 2026. Open from juniors upwards, solo or as a relay. €45 for a licence holder, €60 per relay team.Triathlon S — 750 m swim, 21 km bike in one loop, 5 km run in two laps. Sunday at 10 am in 2026. Open from cadets upwards, solo or as a relay. €35 for a licence holder, €45 per team.Triathlon XS — 350 m swim, 13.5 km bike, 3 km run. Saturday at 4:30 pm in 2026, solo or as a relay (including the company challenge). €22 for a licence holder, €30 per team.Aquathlon XS — 350 m swim and 3 km run, on Saturday afternoon, solo or as a relay. €16.Épreuves jeunes — Three triathlons for 6 to 9, 10 to 11 and 12 to 13-year-olds, on Saturday from 2 pm. €8.
- Registration
- Entries for 2027 are not open yet. In 2026 they were taken online on Njuko, with a price rise after 1 June (€5 more on the M) and a close on 9 July; on-site entry was still possible while places lasted (400 solo and 30 relay places on the M). Athletes without an FFTri licence take a Licence Expérience when entering (€22 extra on the M in 2026) and fill in an online health form, with no medical certificate.
- Official website
- lemanstriathlon.fr/triathlon-du-mans
The 2026 course
Everything starts from the race village below the Abbaye de l’Épau. Swim: start from the beach of the Île aux Sports, two laps of the buoys in the Lac des Sablons for the M (one for the S), an Australian exit, then 100 m in the river to the swim exit. Bike: a 21.7 km loop on open roads (164 m of climbing on the organisers’ map), via Changé, Le Pin, Les Brosses and La Pièce du Puits; one loop for the S, two for the M. Run: a 2.5 km loop around the lake, 95% on crushed-shell surface and trails, run four times on the M, twice on the S and once on the XS.
What the race asks of your training
A run on paths
The run is 95% on crushed-shell (falun) surface and trails, in four 2.5 km laps around the lake. Doing some of your threshold sessions and easy runs on gravel paths gets you used to less even footing and to the surges out of the bends.
A swim that ends in the current
The M swims two laps of the buoys in the lake, with an Australian exit, then 100 m in the river. The race guide advises swimming those 100 m along the left bank to avoid the current. A few open-water sessions, working on sighting, prepare you better than the pool alone.
A rolling bike course, no drafting
Two loops of about 21.5 km on open roads, with a single noticeable climb around the middle of the loop. Drafting is banned (7 m between two bikes according to the organisers): the bike is about steady effort, hence the value of 15 to 20-minute blocks at race pace in your long rides.
A 2 pm start in July
The M starts in the early afternoon, in the middle of summer. Rehearsing a few bike-to-run bricks in the heat of the day, testing what you eat in the morning, avoids bad surprises. Watch the cut-offs: start the run by about 4:40 to 5 pm at the latest, according to the 2026 documents.
The plan below prepares the Triathlon M format, for an athlete at intermediate level with 5 days available per week. Until the official date is out, the example is set for July 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
- 15
- sessions
- 74
- sessions / week
- 5
- peak week
- 7 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 3–6 · 4 wk
- BuildWeeks 7–9 · 3 wk
- SpecificWeeks 10–12 · 3 wk
- TaperWeeks 13–14 · 2 wk
- Race weekWeeks 15–15 · 1 wk
Volume progression
Week by week: lighter recovery weeks are built in to absorb the load.
| Wk | Phase | Hours | km |
|---|---|---|---|
| 1 | General preparation | 4.4 h | 17 |
| 2 | General preparation | 4.7 h | 18 |
| 3 | Base | 5.3 h | 12 |
| 4 | Base | 5.5 h | 13 |
| 5 | Baserecovery | 4 h | 10 |
| 6 | Base | 5.7 h | 13 |
| 7 | Build | 6 h | 14 |
| 8 | Build | 6.1 h | 15 |
| 9 | Buildrecovery | 4.2 h | 11 |
| 10 | Specific | 6.4 h | 15 |
| 11 | Specific | 6.8 h | 16 |
| 12 | Specific | 7 h | 17 |
| 13 | Taper | 5.1 h | 18 |
| 14 | Taper | 4.1 h | 16 |
| 15 | Race week | 2.4 h | 7 |
Sample week — week 8 (Build)
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.
- MondaySwimmingEasy39 min continuous swim39 min · 1.8 km
- TuesdayBrickHard1 h 05 bike + 45 min runincluding 3 × 10 min at threshold on the bike · run at threshold1 h 58
- FridaySwimmingHard3 × 300 m at threshold40 s recovery37 min · 1.7 km
- SaturdayCyclingEasy1 h 44 at endurance pace1 h 44
- SundayRunningEasyLong run 1 h 091 h 09 · 11.1 km
Example generated for a intermediate-level profile (MAS 15 km/h, 5 days available per week). Your plan will depend on your level, availability and feedback.
This plan’s check-up
Pass
A 15-week build (recommended minimum: 8); a longest run never more than 8% above the previous month’s; 83% of the time at easy effort; a taper cutting volume by 66% in race week.
3 worth knowing · 19 checks passed
Remarks
Demanding sessions — Up to 4 demanding sessions in a single week (1 week(s)).
Strength training — No strength session.
Fueling — Long sessions (up to 128 min in this plan) are where race fueling is rehearsed.
The 19 checks passed, in detail
Length of the build — 15 weeks: enough for this race (recommended minimum: 8).
Sessions per week — 5 sessions a week: the minimum for this race is met.
Volume progression — Running volume rises smoothly from week to week.
Long run increase — Each week, the longest run is at most 8% longer than the longest of the previous month (benchmark: 10%).
Lighter weeks — A lighter week comes back regularly (weeks 5, 9, 13).
Intensity distribution — About 83% of the time at easy effort: the most common distribution among trained endurance athletes.
Hard days back to back — Demanding sessions are separated by easy days.
Rest days — At least one rest day a week.
Bike-run bricks — 10 bike-run bricks over the last 12 weeks.
Taper — Volume drops 66% 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 (90%).
Swim / bike / run balance — Swim 21%, bike 46%, run 32%: within coaches’ benchmarks.
Frequency per discipline — Each discipline comes back at least 2 times a week.
Open water — 3 open-water session(s) before the race.
Longest ride — The longest ride lasts 120 min (benchmark: 90 to 150 min).
Longest run — The longest run lasts 80 min (benchmark: 60 to 105 min).
Swim distance — The longest swim covers 187% of the race distance.
Long ride increase — The long ride grows in small steps.
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.
Three disciplines, one load
Swim, bike and run are planned together: brick sessions, key sessions spread out, and a coherent total load week after week.
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
Your plan, not a template athlete's
This plan is generated for an athlete at intermediate level with 5 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.
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Frequently asked questions
- When is the 2027 Le Mans triathlon?
- The 2027 date has not been announced by the club yet. The 2026 edition took place on Saturday 11 and Sunday 12 July, with the M on Sunday at 2 pm.
- Where is the Le Mans triathlon held?
- At the Abbaye Royale de l’Épau, the Gué Bernisson and the Arche de la Nature, east of Le Mans. The swim starts from the beach of the Île aux Sports, on the Lac des Sablons. The abbey car park is closed to competitors.
- How do you enter the Le Mans triathlon?
- Online on Njuko, via lemanstriathlon.fr. In 2026, prices rose after 1 June and entries closed on 9 July; on-site entry was still possible if places remained.
- Do you need a wetsuit?
- FFTri rules apply: a wetsuit is mandatory below 16 °C and banned above 24.5 °C, depending on the temperature measured on race day. Swim caps are not provided: bring your own.
- Triathlon du Mans: how many weeks of preparation?
- For an athlete at intermediate level, Endu builds a 15-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: 19 of 19 checks passed. A 15-week build (recommended minimum: 8); a longest run never more than 8% above the previous month’s; 83% of the time at easy effort; a taper cutting volume by 66% in race week. The rules and their sources are public on endu.fr/en/controle-technique.
- How many sessions per week?
- This example has 5 sessions per week. You choose 4 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 17 October 2026 on the organiser's websites. Details can change: the official website prevails.