Half marathon plan in 1h45

21.1 km

Goal: Half marathon in 1h45, i.e. 4:59/km. Here is the structure Endu generates for an athlete at intermediate level training 4 times a week — goal-pace sessions and race-pace blocks appear from the build phase. Your plan will be calibrated on your VMA and availability.

weeks
13
sessions
51
sessions / week
3.9
peak week
5 h

Plan structure

Periodised in phases: build the base, move to race-specific work, then taper before the race.

  1. General preparation
    Weeks 1–2 · 2 wk
  2. Base
    Weeks 3–5 · 3 wk
  3. Build
    Weeks 6–7 · 2 wk
  4. Specific
    Weeks 8–10 · 3 wk
  5. Taper
    Weeks 11–12 · 2 wk
  6. Race week
    Weeks 13–13 · 1 wk

Volume progression

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

WkPhaseHourskm
1General preparation
3 h
29
2General preparation
3.3 h
32
3Base
3.6 h
36
4Baserecovery
2.8 h
28
5Base
3.9 h
40
6Build
4.2 h
44
7Build
4.5 h
48
8Specificrecovery
3.5 h
36
9Specific
4.8 h
50
10Specific
5 h
52
11Taper
3.7 h
36
12Taper
2.8 h
28
13Race week
2 h
19

Sample week — week 7 (Build)

Real sessions from the plan with their targets. Each session is detailed step by step and exportable as .fit.

  • MondayEasy
    Easy run 54min
    54 min · 8.7 km
  • TuesdayHard
    Threshold 5×6min
    1 h · 11.3 km
  • FridayVery hard
    Intervals 5×1.2km
    1 h 03 · 12.1 km
  • SundayModerate
    Long run 92min
    1 h 32 · 15.4 km

Example generated for a intermediate-level profile (VMA 15 km/h, 4 sessions/week). Your plan will depend on your level, availability and feedback.

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Your plan, not a template athlete's

This plan is generated for an athlete at intermediate level training 4 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.

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Frequently asked questions

How many weeks to prepare for Half marathon?
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 extends the base phase.
How many sessions per week?
This example has 3.9 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.
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.

Useful calculators

Variations of this plan