When is IRONMAN 70.3 Aix-en-Provence 2027?

On Sunday 23 May 2027, according to ironman.com. The 2026 edition was held on 17 May, starting at 7 am at Lake Peyrolles.

Can you still enter for 2027?

General and relay entries are sold out as of 17 October 2026. IRONMAN Experiences packages, the IRONMAN Foundation charity entry and TEAM IMF fundraising remain.

Where does the race start and finish?

The start is at Lake Peyrolles, in Peyrolles-en-Provence, where the first transition is. The second transition is at the Collège Mignet in Aix, and the finish is on the Cours Mirabeau, by the Rotonde fountain. Shuttles to the lake must be booked.

What are the cut-offs?

In 2026: 1h10 for the swim, the Col du Cengle (km 67) by 12:40 pm, 5h30 to finish the bike, km 14 of the run by 3:30 pm and 8h30 to the finish, counted from your own start time.

Ironman 70.3 Aix-en-Provence: how many weeks of preparation?

For an athlete at intermediate level, Endu builds a 21-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 6 sessions per week. You choose 5 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.

Ironman 70.3 Aix-en-Provence 2027: date, course and training plan

113 km · swim 1.9 · bike 90 · run 21.1Aix-en-Provence2027 edition: 23 May 2027

IRONMAN 70.3 Aix-en-Provence is an early-season half-distance race, held in mid-May. You swim in Lake Peyrolles, about twenty kilometres from Aix, ride back into town over the roads of the Sainte-Victoire, then run three laps between the old town and the Parc de la Torse, finishing by the Rotonde fountain. The 2026 edition, the 15th, brought together nearly 2,600 athletes.

Your plan for Ironman 70.3 Aix-en-Provence

29 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 70.3 Aix-en-Provence at a glance

Date: 2027 edition: 23 May 2027
Formats: IRONMAN 70.3Plan below — 1.9 km swim in one loop in Lake Peyrolles, 90 km bike in one loop (1,180 m of climbing on the 2027 map), 21.1 km run in three laps through Aix. 2026 cut-offs: swim within 1h10, Col du Cengle (km 67) by 12:40 pm, bike finished within 5h30, km 14 of the run by 3:30 pm, finish within 8h30. Aged 18 and over.
Relais — Teams of two or three, on the same course. Sold out for 2027 as of 17 October 2026.
IRONKIDS — Children’s races the day before, on the Cours Mirabeau by the Rotonde (Saturday at 4 pm in 2026).
Registration: As of 17 October 2026, general and relay entries for 2027 are sold out on ironman.com, and there is no waiting list. Places remain through IRONMAN Experiences (NIRVANA) packages, the IRONMAN Foundation charity entry ($1,108.25) or TEAM IMF fundraising. An annual FFTri licence or a Licence Expérience is required, obtained before race day. The race offers qualifying slots for the 2027 IRONMAN 70.3 World Championship.
Official website: ironman.com/races/im703-aix-en-provence

The 2027 course

Swim: one rectangular 1.9 km loop in Lake Peyrolles, rolling start in waves from about 7 to 8 am; transition 1 by the lake, 400 m from the swim exit. Bike (2027 map): one 90 km loop with 1,180 m of climbing, from Peyrolles-en-Provence (210 m above sea level) via Saint-Paul-lez-Durance (km 10), Ginasservis (km 30), Rians (km 40) and Pourrières (km 60), then Puyloubier and the Col du Cengle (486 m, the high point) before descending via Saint-Antonin-sur-Bayon and Le Tholonet into Aix; aid stations at km 21, 50 and 79 in 2026. Run (2026 course): three 7 km laps between the city centre and the Parc de la Torse, an aid station about every 2 km, finish on the Cours Mirabeau.

What the race asks of your training

A hilly bike, with the climb late on

1,180 m of climbing over 90 km, on rolling false flats, then the Col du Cengle from km 67 to km 71, at 5% on average. In your long rides, put a 10 to 15-minute climb at threshold after two hours in the saddle: that is when the climb comes on race day, and the 12:40 pm cut-off is at the Col du Cengle (km 67).

A lake swim, still cool in May

IRONMAN lists an average water temperature of 18 °C (17 °C in 2026): a wetsuit is almost certain, and it becomes mandatory below 16 °C. Three or four open-water swims in the spring, in your race wetsuit, get you used to the cold and to the rolling start by target time.

A build-up that starts in winter

For a race on 23 May, a 16 to 20-week build-up starts between January and February. Winter long rides often happen on a home trainer: keep one outdoor ride at the weekend whenever you can, to get your descending skills back, which you need after the climb.

A city half marathon, not quite flat

The run is described as rolling: three laps between the city centre and the Parc de la Torse, with crowds all the way. Bricks of bike followed by 20 to 30 minutes at half-marathon pace on a hilly route teach you to hold your pace on the rises.

The plan below prepares the IRONMAN 70.3 format, for an athlete at intermediate level with 6 days available per week, with race day on 23 May 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: 21
sessions: 125
sessions / week: 6
peak week: 10.3 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 3–8 · 6 wk
Build
Weeks 9–13 · 5 wk
Specific
Weeks 14–18 · 5 wk
Taper
Weeks 19–20 · 2 wk
Race week
Weeks 21–21 · 1 wk

Volume progression

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

Wk	Phase	Hours	km
1	General preparation	6.3 h	21
2	General preparation	6.6 h	22
3	Baserecovery	5.6 h	19
4	Base	7.2 h	23
5	Base	7.5 h	24
6	Base	7.7 h	25
7	Baserecovery	6.1 h	20
8	Base	8.1 h	25
9	Build	8.5 h	28
10	Build	8.7 h	28
11	Buildrecovery	6.7 h	24
12	Build	9 h	29
13	Build	9.2 h	30
14	Specific	9.5 h	30
15	Specificrecovery	7.2 h	24
16	Specific	9.6 h	30
17	Specific	10 h	32
18	Specific	10.3 h	33
19	Taper	7 h	22
20	Taper	5.7 h	18
21	Race week	3.6 h	8

Sample week — week 12 (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.

MondaySwimmingEasy
59 min continuous swim
59 min · 2.7 km
TuesdayRunningVery hard
3 × 1.2 km at MAS
2 min 30 s jog recovery
48 min · 8.8 km
ThursdayBrickHard
1 h 30 bike + 17 min run
including 3 × 10 min at threshold on the bike · run at marathon pace
1 h 55
FridaySwimmingHard
10 × 200 m at threshold
20 s recovery
59 min · 2.8 km
SaturdayCyclingEasy
2 h 45 at endurance pace
2 h 45
SundayRunningEasy
Long run 1 h 33
1 h 33 · 15 km

Example generated for a intermediate-level profile (MAS 15 km/h, 6 days available per week). Your plan will depend on your level, availability and feedback.

This plan’s check-up

Pass

A 21-week build (recommended minimum: 12); a longest run never more than 6% above the previous month’s; volume rising at most 13% from one week to the next; 82% of the time at easy effort; the longest session 3 weeks before the race; a taper cutting volume by 65% in race week.

2 worth knowing · 22 checks passed

Remarks

Strength training — No strength session.
Fueling — Long sessions (up to 195 min in this plan) are where race fueling is rehearsed.

The 22 checks passed, in detail

Length of the build — 21 weeks: enough for this race (recommended minimum: 12).
Sessions per week — 6 sessions a week: the minimum for this race is met.
Volume progression — Running volume rises at most 13% from one week to the next (a signal appears beyond 20%).
Long run increase — Each week, the longest run is at most 6% longer than the longest of the previous month (benchmark: 10%).
Lighter weeks — A lighter week comes back regularly (weeks 3, 7, 11, 15, 19).
Intensity distribution — About 82% 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 3 weeks before the race: the right time.
Bike-run bricks — 10 bike-run bricks over the last 12 weeks.
Taper — Volume drops 65% 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 (92%).
Swim / bike / run balance — Swim 22%, bike 48%, run 30%: within coaches’ benchmarks.
Frequency per discipline — Each discipline comes back at least 2 times a week.
Sessions per week — 6 sessions a week: enough for a long format.
Open water — 5 open-water session(s) before the race.
Longest ride — The longest ride lasts 195 min (benchmark: 180 to 270 min).
Longest run — The longest run lasts 110 min (benchmark: 90 to 135 min).
Swim distance — The longest swim covers 174% 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

“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
“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

Your plan, not a template athlete's

This plan is generated for an athlete at intermediate level with 6 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 Ironman 70.3 Aix-en-Provence