Ironman Nice 2027: date, course and training plan
IRONMAN France starts from Ponchettes beach in Nice: a 3.8 km swim in the Mediterranean, 180 km of riding through the hinterland and the Préalpes d’Azur regional nature park, then a marathon on the Promenade des Anglais. Held in late June until 2026 (28 June that year), it moves to Sunday 12 September in 2027, the same day as IRONMAN 70.3 Nice.
A demanding distance: it is wiser to have finished a shorter race of the same kind first.
Your plan for Ironman Nice
45 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.
Ironman Nice at a glance
- Date
- 2027 edition: 12 September 2027
- Formats
- IRONMAN FrancePlan below — 3.8 km swim in two loops, 180 km bike in one loop (2,400 m of climbing), 42.2 km run in four laps. 2026 cut-offs: swim within 2h15 (2h25 including transition), bike finished within 10h45, finish within 16 hours. No relays at full distance. Aged 18 and over.IRONMAN 70.3 Nice — On the same day in 2027: 1.9 km swim, 90 km bike over the Col de Vence, 21.1 km run. A separate race, with its own page.
- Registration
- Entries are open on ironman.com. As of 10 October 2026, a 2027 entry costs €873.60 all in (€650 entry, €78 fees and €145.60 VAT); the price rises as places sell. Until 28 October 2026, the Flex90 offer gives a free deferral, a fee-free transfer or a partial refund. FFTri licence, or a Licence Expérience at XXL distance (free for licence holders from some neighbouring countries). The race offers qualifying slots for the 2028 IRONMAN World Championship.
- Official website
- ironman.com/races/im-france
The 2026 course
Swim: two loops, 3.8 km in total, from Ponchettes beach, opposite the Quai des États-Unis, with no Australian exit. Bike: one 180.2 km loop, shared with the 70.3 up to the foot of the Col de Vence. After 10 km along the coast comes the Pugets climb towards Saint-Jeannet; at km 26, at the foot of the Col de Vence, IRONMAN athletes carry on alone. At km 41 the 18 km climb to the Col de l’Ècre through the Gorges du Loup begins; from km 77 the road heads for the Caille and Thorenc plateaus, with the personal needs station at Andon (km 80), then drops down to Gréolières through the Clues de Gréolières. Run: four laps of the Promenade des Anglais out to the airport and back, finishing by the beach.
What the race asks of your training
2,400 m of climbing and long ascents
The bike links the Pugets climb towards Saint-Jeannet (9 km at 3.3% on average, with three sections between 10 and 15% in the first four kilometres), then 18 km of climbing to the Col de l’Ècre through the Gorges du Loup, before the Caille and Thorenc plateaus. Long rides should include climbs of more than an hour at a steady pace: the sample plan below is for a classic Ironman, so remember to add this climbing.
Cut-offs all along the bike
In 2026 you had to reach Gourdon (km 53) by 1:10 pm, Andon (km 80) by 2:45 pm, the Côte de Saint-Pons (km 120.5) by 4:55 pm and Saint-Laurent (km 159) by 6:10 pm, for a 7:30 am start. One very long mountain ride late in the build-up tells you whether you will reach these points in time.
A sea swim, sometimes without a wetsuit
Wetsuits are banned above 24.5 °C. IRONMAN lists an average water temperature of 24 °C and recorded 26 °C in 2025: training to swim 3.8 km without a wetsuit, in open water, avoids a nasty surprise on race morning.
A flat marathon in the sun
Four laps on the Promenade des Anglais, out to the airport and back, with an aid station every 1.8 km. The organisers warn that the run is often hot: long rides followed by a run in the heat of the day, and the habit of drinking at every aid station, prepare you for this marathon.
The plan below prepares the IRONMAN France format, for an athlete at intermediate level with 7 days available per week, with race day on 12 September 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
- 25
- sessions
- 173
- sessions / week
- 7
- peak week
- 14.1 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 3–10 · 8 wk
- BuildWeeks 11–16 · 6 wk
- SpecificWeeks 17–21 · 5 wk
- TaperWeeks 22–24 · 3 wk
- Race weekWeeks 25–25 · 1 wk
Volume progression
Week by week: lighter recovery weeks are built in to absorb the load.
| Wk | Phase | Hours | km |
|---|---|---|---|
| 1 | General preparation | 8.8 h | 30 |
| 2 | General preparation | 9.1 h | 32 |
| 3 | Base | 9.9 h | 29 |
| 4 | Base | 10.2 h | 30 |
| 5 | Base | 10.5 h | 31 |
| 6 | Baserecovery | 8.5 h | 24 |
| 7 | Base | 10.7 h | 32 |
| 8 | Base | 11 h | 33 |
| 9 | Base | 11.3 h | 34 |
| 10 | Baserecovery | 9.1 h | 26 |
| 11 | Build | 11.7 h | 35 |
| 12 | Build | 12 h | 36 |
| 13 | Build | 12.2 h | 36 |
| 14 | Buildrecovery | 9.7 h | 30 |
| 15 | Build | 12.4 h | 37 |
| 16 | Build | 12.6 h | 37 |
| 17 | Specific | 13.3 h | 39 |
| 18 | Specificrecovery | 10.4 h | 31 |
| 19 | Specific | 13.4 h | 39 |
| 20 | Specific | 13.7 h | 40 |
| 21 | Specific | 14.1 h | 41 |
| 22 | Taper | 10.3 h | 37 |
| 23 | Taper | 8.7 h | 30 |
| 24 | Taper | 7.4 h | 25 |
| 25 | Race week | 4.1 h | 8 |
Sample week — week 15 (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.
- TuesdayRunningVery hard3 × 1.2 km at MAS2 min 30 s jog recovery48 min · 8.8 km
- TuesdaySwimmingEasy1 h 14 continuous swim1 h 14 · 3.4 km
- WednesdayCyclingEasy30 min at endurance pace30 min
- ThursdayBrickHard1 h 34 bike + 24 min runincluding 3 × 10 min at threshold on the bike2 h 06
- FridaySwimmingHard9 × 300 m at threshold20 s recovery1 h 12 · 3.5 km
- SaturdayCyclingEasy4 h 23 at endurance pace4 h 23
- SundayRunningEasyLong run 2 h 112 h 11 · 21.2 km
Example generated for a intermediate-level profile (MAS 15 km/h, 7 days available per week). Your plan will depend on your level, availability and feedback.
This plan’s check-up
Pass
A 25-week build (recommended minimum: 16); a longest run never more than 4% above the previous month’s; volume rising at most 8% from one week to the next; 85% of the time at easy effort; the longest session 4 weeks before the race; a taper cutting volume by 71% in race week.
4 worth knowing · 21 checks passed
Remarks
Lighter weeks — 5 loading weeks in a row without a lighter week (up to week 5).
Long run after the long ride — The long run falls the day after the long ride in 9 weeks.
Strength training — No strength session.
Fueling — Long sessions (up to 300 min in this plan) are where race fueling is rehearsed.
The 21 checks passed, in detail
Length of the build — 25 weeks: enough for this race (recommended minimum: 16).
Sessions per week — 7 sessions a week: the minimum for this race is met.
Volume progression — Running volume rises at most 8% from one week to the next (a signal appears beyond 20%).
Long run increase — Each week, the longest run is at most 4% longer than the longest of the previous month (benchmark: 10%).
Intensity distribution — About 85% of the time at easy effort: the most common distribution among trained endurance athletes.
Demanding sessions — No more than 3 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.
Timing of the longest session — The longest session falls 4 weeks before the race: the right time.
Bike-run bricks — 9 bike-run bricks over the last 12 weeks.
Taper — Volume drops 71% 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 (86%).
Swim / bike / run balance — Swim 19%, bike 53%, run 28%: within coaches’ benchmarks.
Frequency per discipline — Each discipline comes back at least 2 times a week.
Sessions per week — 7 sessions a week: enough for a long format.
Open water — 5 open-water session(s) before the race.
Longest ride — The longest ride lasts 300 min (benchmark: 300 to 390 min).
Longest run — The longest run lasts 150 min (benchmark: 120 to 180 min).
Swim distance — The longest swim covers 92% 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 7 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 IRONMAN France Nice 2027?
- On Sunday 12 September 2027, according to ironman.com, the same day as IRONMAN 70.3 Nice. The 2026 edition was held on 28 June.
- How much is the entry?
- €873.60 all in as of 10 October 2026, fees and VAT included. The price rises as places are sold.
- What are the IRONMAN France cut-offs?
- In 2026: 2h15 for the swim, 10h45 to finish the bike (with intermediate checkpoints at Gourdon, Andon, Saint-Pons and Saint-Laurent), end of the third run lap (km 31.5) by 10:40 pm and 16 hours to finish.
- Ironman Nice: how many weeks of preparation?
- For an athlete at intermediate level, Endu builds a 25-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: 21 of 21 checks passed. A 25-week build (recommended minimum: 16); a longest run never more than 4% above the previous month’s; volume rising at most 8% from one week to the next; 85% of the time at easy effort; the longest session 4 weeks before the race; a taper cutting volume by 71% in race week. The rules and their sources are public on endu.fr/en/controle-technique.
- How many sessions per week?
- This example has 7 sessions per week. You choose 6 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?
- Not as a first long race: if you declare a beginner level, Endu flags it. Aim for a shorter race of the same kind first; Endu builds that preparation too.
- 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.