Ultra Trail des Montagnes du Jura 2026: training plan
Ultra Trail des Montagnes du Jura — 300 km · 12,000 m D+ · Longevilles-Mont-d'Or. Here is the preparation structure Endu generates for an athlete at advanced level training 6 times a week, with race day on 15 October 2026. Your plan will be calibrated on your VMA, your available days and your feedback after every session.
This race is for experienced ultra trail runners: finishing several mountain ultras over 100 km beforehand is recommended. The example below is built for an advanced athlete.
- weeks
- 25
- sessions
- 131
- sessions / week
- 5.2
- peak week
- 17.8 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 | Elev. |
|---|---|---|---|---|
| 1 | General preparation | 9.5 h | 59 | 2,294 m |
| 2 | General preparation | 9.9 h | 61 | 2,647 m |
| 3 | Base | 10.4 h | 65 | 2,903 m |
| 4 | Baserecovery | 8.1 h | 53 | 1,760 m |
| 5 | Base | 10.9 h | 67 | 3,113 m |
| 6 | Base | 11.3 h | 69 | 3,266 m |
| 7 | Base | 11.7 h | 71 | 3,421 m |
| 8 | Baserecovery | 9.2 h | 58 | 2,237 m |
| 9 | Base | 12.2 h | 75 | 3,696 m |
| 10 | Base | 12.5 h | 77 | 3,849 m |
| 11 | Build | 13 h | 78 | 3,851 m |
| 12 | Buildrecovery | 10.2 h | 64 | 2,579 m |
| 13 | Build | 13.5 h | 78 | 4,220 m |
| 14 | Build | 13.9 h | 82 | 4,421 m |
| 15 | Build | 14.3 h | 84 | 4,620 m |
| 16 | Buildrecovery | 11.2 h | 71 | 3,187 m |
| 17 | Specific | 16.1 h | 92 | 5,301 m |
| 18 | Specific | 15.4 h | 90 | 5,303 m |
| 19 | Specific | 17 h | 97 | 5,702 m |
| 20 | Specific | 16.1 h | 92 | 5,494 m |
| 21 | Specific | 17.8 h | 101 | 6,103 m |
| 22 | Taper | 11.1 h | 68 | 3,357 m |
| 23 | Taper | 9.3 h | 62 | 2,446 m |
| 24 | Taper | 7.4 h | 50 | 1,223 m |
| 25 | Race week | 3.8 h | 31 | 180 m |
Sample week — week 14 (Build)
Real sessions from the plan with their targets. Each session is detailed step by step and exportable as .fit.
- MondayEasy🏔️ Easy trail run 35min — rolling terrain (~189m climb)35 min · 3.5 km
- TuesdayVery hard🏔️ Short hills 15×1.5min1 h 21 · 8.1 km
- WednesdayEasy🏔️ Easy trail run 35min — rolling terrain (~189m climb)35 min · 3.5 km
- FridayEasy🏔️ Easy trail run 35min — rolling terrain (~189m climb)35 min · 3.5 km
- SaturdayEasy🏔️ Back-to-back long run 230min · 1289m gain3 h 50 · 21 km
- SundayEasy🏔️ Long trail run ~42.0km with 1933m climbing6 h 57 · 42 km
Example generated for a advanced-level profile (VMA 17.5 km/h, 6 sessions/week). Your plan will depend on your level, availability and feedback.
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 VMA or a reference performance. A VMA test is built into the plan if you don't know yours.
Elevation as the central variable
Weekly climbing volume, long hilly runs, downhill technique and power-hiking for ultras: a trail plan is not a road plan with bumps.
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
.fit export compatible with Garmin, Coros, Suunto, Polar: the guided workout shows up on your wrist, step by step.
Your plan, not a template athlete's
This plan is generated for an athlete at advanced level training 6 times a week. Yours will be calibrated on your VMA, your available days and your feedback after every session. 3 minutes. 14-day trial, cancel anytime.
Create my plan for Ultra Trail des Montagnes du JuraFrequently asked questions
- How many weeks to prepare for Ultra Trail des Montagnes du Jura?
- For an athlete at advanced 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 extends the base phase.
- How many sessions per week?
- This example has 5.2 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?
- No. This race assumes several finished mountain ultras over 100 km: if you declare a beginner or intermediate level, Endu flags it. Start with a shorter race; Endu builds that preparation too.
- Can I follow sessions on my watch?
- Yes: every session exports as .fit, the format read by Garmin, Coros, Suunto, Polar and Wahoo. Import it in your watch app and the guided workout appears on your wrist.
- 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.