Runner's World is delighted to make half-marathon schedules available to Garmin Forerunner (205, 301, 305, 405) users. Just choose a schedule below, enter your race date and then download the training file. Then all you have to do is load the file into your Garmin Training Center software (easy as pie), connect your Forerunner, and all 12 weeks will be uploaded onto your wrist at once! (See FAQs)

On each schedule page below, there's a 'quick download' button, but you can also customise the half-marathon target time, and your heart rates or training zones if you want.

The schedules begin 12 weeks before your chosen race date, and are available for the following target times:

• Sub-1:30 If your race is 12 weeks from now, you should be running at least 35-40 miles per week, over 5 or 6 sessions.
• Sub-1:40 If your race is 12 weeks from now, you should be running at least 30-35 miles per week, over 4 or 5 sessions.
• Sub-1:50 If your race is 12 weeks from now, you should be running at least 25-30 miles per week, over 3 or 4 sessions.
• Sub-2:00 If your race is 12 weeks from now, you should be running at least 15-20 miles per week, and be able to run for 1 hr non-stop.
• Sub-2:15 If your race is 12 weeks from now, you should be running at least 12-15 miles per week, and be able to run for 50 mins non-stop.

Happy running!