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½ Marathon Training Program
Experienced endurance athlete

A training program has to be developed to meet the athlete's individual needs and consider many factors: gender, age, strengths, weaknesses, objectives, training facilities etc. As all athletes have different needs, a single program suitable for all athletes is not possible.

The page provides insight into a 24-week endurance training program for an experienced endurance athlete wishing to compete in a half marathon race. This program must be supported by general and specific strength training, nutrition, mobility and psychology programs.

Before You Start

Before starting any training, you must have a medical examination to ensure it is safe for you to do so.

The following program is suitable for an athlete who has completed a 10 km race. If you have not, it is recommended that before commencing this 24-week program, you should complete a general endurance training program in which time you build up the distance you run each week to 20 miles. The weekly increment should not exceed 10% of the current mileage.

Any application of the following training program is at the athlete's discretion and risk.

Half Marathon Program - mileage based

All figures in the table are miles.

Half Marathon Training Program - General and Specific Endurance
Week Total Miles Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 20 5 3 F 2 4 2.5 Rest 3.5
2 22.5 5.5 3.5 F 2.5 4 3.5 Rest 3.5
3 25 6 4 2.5 S 4.5 3 Rest 5 R
4 27.5 6 4 3 S 4.5 4 Rest 2 x 3
5 30 6 4 4 S 4.5 4 2.5 5 R
6 30 7 4 3 S 5 2 x 3 Rest 5
7 32.5 7 2 x 2.5 4 S 5 2 x 3 Rest 5.5
8 27.5 7.5 4 3 S 5 3 Rest 5 R
9 32.5 7.5 2 x 2.5 4 S 6 4 Rest 6
10 35 8 2 x 2.5 5 H 6 5 F Rest 6
11 32.5 8 2 x 2.5 5 H 6 30 min F Rest 5 R
12 37.5 8.5 2 x 2.5 5 H 6 2 x 3 Rest 4 & 3
13 32.5 8.5 4 5 H 6 30 min F Rest 6 R
14 40 9 4 5 H 7 30 min F 2 x 2.5 6
15 35 9 2 x 2.5 5 H 6 30 min F Rest 6.5 R
16 42.5 10 2 x 2.5 5 H 5 30 min F 4.5 4 & 3
17 40 10 2 x 2.5 5 H 7 30 min F 3 5
18 37.5 9 2 x 2.5 5 H 6 30 min F 2 7.5 R
19 45 6 2 x 3 5 H 7.5 30 min F 3.5 & 2 11
20 30 5 & 4 2.5 4 H 6 30 min F 2 & 2.5 Rest
21 35 10 R 4 5 H 7 30 min F 2 x 2.5 Rest
22 40 12 2.5 5 H 7 30 min F 2 x 2.5 5
23 12 Rest 3 H 3 Rest 3 H 3 Rest
24 6 3 H Rest 3 Rest Rest Rest Race

All figures in the table are miles.

Key : F- Fartlek H - Include hills R - Time Trial or Race S - Speed

Note: 2 x 2.5 means two 2.5-mile runs, and 4 & 3 means a 4-mile and a 3-mile run

Post-Race

After the race, take 4 or 5 days off training and increase your Vitamin C and Zinc intake. Research has shown that in the first week after a half marathon, the efficiency of your immune system is reduced, and you will, therefore, be prone to infections. An increase in Vitamin C and Zinc during training can also be considered.

Half Marathon Training Speed Calculator

If you have consistently run some good 10-kilometre times, then multiply this by 2.22 to get your target half-marathon time.

Enter your Half Marathon Target Time and select the 'Calculate' button.

Target Time mins  
Speed for an R or S session: min sec/mile   Speed for all other sessions: min sec/mile

Race Time Calculator

For an estimate of race time, enter details of a recent distance and time, the race distance and then select the 'Calculate' button.

Distance km   Time mins   Race Distance km
  Predicted Time mins

Free Calculator

Prediction based on half marathon time

It is possible to predict your 400 metres, 800 metres, 1500 metres, 3 km, 5 km, 10 km and Marathon times from your current half marathon time using Frank Horwill's four-second rule for male athletes and Frank Horwill's five-second rule for female athletes.

Page Reference

If you quote information from this page in your work, then the reference for this page is:

  • MACKENZIE, B. (2001) ½ Marathon Training Program - Experienced endurance athlete [WWW] Available from: https://www.brianmac.co.uk/longdist/tphmar.htm [Accessed