BeginnerSEMI-MARATHON

First Half Marathon

Cross the half-marathon finish line with confidence! This 10-week program will guide you progressively to the finish, building endurance and mental strength.

Duration
10
weeks
Sessions
3
per week
Distance
21.1
km

Prerequisites

  • Run 10k continuously
  • 3-4 months of regular running
  • Available for 3 sessions per week

Export this plan

Add sessions to your calendar or export to your Garmin / Coros watch.

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

Week-by-week program

W1Getting started
Week 1
Monday
Endurance35 min

30 min easy endurance - 70% MHR

Wednesday
Endurance30 min

25 min - 70% MHR

Sunday
Long run50 min

45 min continuous run - 70% MHR

W3Build
Week 3
Monday
Endurance40 min

35 min - 70% MHR

Wednesday
Light intervals40 min

5 x (4 min 75% MHR / 2 min rest)

Sunday
Long run65 min

60 min continuous run - 70% MHR

W6Strengthening
Week 6
Monday
Endurance45 min

40 min - 70% MHR

Wednesday
Threshold40 min

2 x (8 min 78% MHR / 2 min rest)

Sunday
Long run85 min

80 min continuous run - 70% MHR

W9Sharpening
Week 9
Monday
Endurance40 min

35 min - 70% MHR

Wednesday
Endurance35 min

30 min - 70% MHR

Sunday
Long run80 min

75 min continuous run - 70% MHR

W10Taper
Week 10
Monday
Endurance30 min

25 min - 70% MHR

Wednesday
Rest0 min

Full rest day

Sunday
RACE1h45 to 2h30 depending on your level

HALF MARATHON 21.1k - Finish with pride!

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

Training tips

  • 1.Increase your long run by max 10-15% per week
  • 2.Train on similar terrain as your race
  • 3.Test your nutrition and gels on long runs
  • 4.Warm up well and stretch after each session

Frequently Asked Questions

How long does it take to complete a half marathon as a beginner?

A beginner typically finishes a half marathon between 1h50 and 2h45, depending on initial fitness level. What matters is completing the race. Once you finish your first, you can progress to faster goals.

How do I manage nutrition during 21k?

For a half marathon, you'll need fueling during the race. Consume about 30-60g carbs per hour (gels, sports drinks, or dried fruit). Start fueling after 45 minutes. Always test your nutrition strategy on long runs!

Should I do cross-training or strength work?

Very beneficial! Add 1-2 light strength sessions (20-30 min) focused on legs, glutes, and core. Cross-training (swimming, cycling) once per week aids recovery and prevents injuries.