IntermediateSEMI-MARATHONGoal: 1h45

Half Marathon in 1h45

Target intermediate half marathon performance. This 10-week plan combines endurance, threshold, and speed work to help you complete 21k in 1h45.

Duration
10
weeks
Sessions
4
per week
Distance
21.1
km

Prerequisites

  • Run 10k in 50 minutes
  • Have completed one half marathon
  • 5+ months of regular running
  • Available for 4 sessions per week

Exporter ce plan

Ajoute les séances à ton calendrier ou exporte-les vers ta montre Garmin / Coros.

ℹ️.ICS : Apple Calendar, Google Calendar, Outlook —.FIT : Garmin Connect, Coros Training Hub, Suunto, Wahoo

Week-by-week program

S1Fondation
Week 1
Lundi
Endurance40 min

35 min en endurance facile - 70% FCM

Mercredi
Seuil40 min

2 x (7 min 80% FCM / 2 min repos) - Allure 1h45 tempo

Vendredi
Endurance35 min

30 min - 70% FCM

Dimanche
Sortie longue65 min

60 min - 70% FCM

S3Développement
Week 3
Lundi
Endurance43 min

38 min - 70% FCM

Mercredi
Fractionné40 min

5 x (3 min 83% FCM / 2 min repos) - Allure rapide de compétition

Vendredi
Seuil35 min

12 min 80% FCM - Allure tempo continue

Dimanche
Sortie longue80 min

75 min - 70% FCM

S6Renforcement
Week 6
Lundi
Endurance45 min

40 min - 70% FCM

Mercredi
Fractionné38 min

6 x (2 min 30 sec 84% FCM / 1 min 30 sec repos)

Vendredi
Seuil35 min

15 min 80% FCM

Dimanche
Sortie longue95 min

90 min - 70% FCM (18-19 km)

S9Affûtage
Week 9
Lundi
Endurance40 min

35 min - 70% FCM

Mercredi
Fractionné léger35 min

5 x (2 min 82% FCM / 1 min 30 sec repos)

Vendredi
Endurance30 min

25 min - 70% FCM

Dimanche
Sortie longue85 min

80 min - 70% FCM (16 km)

S10Décrassage
Week 10
Lundi
Endurance30 min

25 min - 70% FCM

Mercredi
Endurance25 min

20 min - 70% FCM

Vendredi
Repos0 min

Jour de repos complet

Dimanche
RACE1h45

SEMI-MARATHON 21.1 km - Visez 1h45 !

This plan shows key weeks from the 10-week program. Intermediate weeks follow the same pattern with progressive intensity.

Training tips

  • 1.Target pace is 5 min/km - train regularly at this speed
  • 2.Long runs should progress to maximum 18k
  • 3.Do tempo sessions to get your body used to race pace
  • 4.Add strength training 2x/week (30 min)

Frequently Asked Questions

How do I know if 1h45 is a realistic goal for me?

If you can run 10k in 50 minutes and 5k in 24-25 minutes, 1h45 for a half marathon is realistic. You should also maintain 5 min/km for 15+ minutes during interval sessions. Trust your training data.

What's the best pacing strategy for a half marathon?

Start slightly below target pace (4:50/km for first 5k). Then maintain your target pace (5 min/km). If you feel good at 15k, you can increase slightly. Don't get swept up in race day excitement!

Should I do a fast 10k before the half marathon race?

Not one week before. You can do a 10k test 3-4 weeks before to check progress, but the last week should be very easy. Do easy 20-25 min runs in the days before the race.