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in Half-Marathon Training, Runners' Roundup, Running, Running Tips, Training · February 12, 2025

How Long Do You Need to Train for a Half Marathon?

If one of your goals this year is to run a half marathon, you may be starting to think about how to train for your race. Once you select a race you will need to plan out your training. You want to give yourself plenty of time to train, especially if you are new to running or if you recently took time off. If you are wondering how long you need to train for a half marathon, I’ll explain some of the nuances around that in this article. The amount of time you need to train for a half marathon will be different for everyone and will depend on your fitness, experience, and goals.

If one of your goals this year is to run a half marathon, you may be starting to think about how to train for your race. The amount of time you need to train for a half marathon will be different for everyone and will depend on your fitness, experience and goals. Here are some guidelines for planning how much time you will need to train for a half marathon.

Estimated reading time: 5 minutes

Table of contents

  • How long will it take a new runner to train for a half-marathon?
  • How long should intermediate runners spend training for a half marathon?
  • How long do advanced runners need to train for a half marathon?
  • Final thoughts

The standard amount of time to train for a half marathon is about 8-16 weeks. In order to decide how much time you should take to train it’s important to look at your own individual training needs.

How long will it take a new runner to train for a half-marathon?

If you are completely new to running, you will want to get started with building a base before starting to train. This may take a couple of months. Once you are regularly running about 3 days a week for at least 30 minutes you can transition to half marathon training. You will want to make sure that your plan starts with similar mileage to what you have been doing. If it is going to be a big jump, give yourself a few more weeks to increase your running before following the plan.

For new runners you will want to give yourself 16-20 weeks to train. This will allow you to build your mileage slowly and take cut-back weeks throughout your training. You also want to be able to get your mileage high enough that you are well-prepared for the race.

How long should intermediate runners spend training for a half marathon?

If you have some experience running already you won’t need to spend as much time training. However, if you have taken time off or your mileage is very low you will want to spend some time base-building before you start training. It’s important to not make a huge jump in your mileage at the beginning of your training cycle.

If you have already been running regularly and have a solid base, your training plan may be impacted by your goals. For example, if you already run 12-13 miles on the weekends and just want to run the race for fun, you won’t need to put in much training. if you are looking to get faster or run a PR you will be looking at training for about 10-12 weeks. This will give you time to work on speed and get in half marathon specific workouts.

How long do advanced runners need to train for a half marathon?

Advanced runners may have already completed many half marathons and may regularly run the distance of a half marathon as their weekly long run. However, there are a few things for advanced runners to keep in mind. If you just ran a goal race, you will want to take time to recover and then spend some time in a maintenance phase before jumping into hard training again. For advanced runners who run a lot of marathons, you will want to focus more on speed and half marathon specific workouts during half marathon training.

While advanced runners may only need 6-8 weeks to train for a half marathon, giving yourself more time will allow for more quality workouts. If you haven’t been doing speedwork you will want to make sure you are prepared for the demands of those workouts before adding them into your routine.

Final thoughts

As you can see, the timeline for training for a half marathon really depends. It’s always nice to give yourself a little extra time in case you need to miss some workouts. Remember that it’s important to have cutback weeks and a taper in your plan. Find a good plan that progresses your workouts appropriately and allows time for recovery throughout training and before your race.

While having a personal running coach will provide you with the most individualized training, I have a few training plans that are available for purchase. If you are creating your own training plan you may want to check out these half marathon workouts.

I also have a race preparation resource guide for runners who would like more support but do not want to work with a coach.This guide will walk you through the training process with everything you need to know. It includes training plans for the 5k, 10k, half-marathon and marathon so you can use this for multiple races of different distances!

You may also like:

Why and How to Run a 5k Time Trial to Test Your Fitness
Create Tiny Habits to Take Your Running to the Next Level
What Everyday Runners Can Take Away from Strava Data on Marathon Training

How long do you usually spend training for a race?

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Reader Interactions

Comments

  1. Deborah Brooks says

    February 12, 2025 at 9:56 am

    These are great guidelines for training. It is so individual. For me, the longer the better to make sure I have a good base.

  2. Jenn says

    February 13, 2025 at 7:33 pm

    I am a firm believer in taking a little longer to train. That way, I’m comfortable, and it gives time for any adjustments or “surprises.”

  3. Debbie says

    February 14, 2025 at 8:29 am

    Great information! It’s true that it depends on where you are with your running. I used to stay very fit so all I needed was a little speed work to prepare. Now I think I’d need a few months to get ready. 🙂

Trackbacks

  1. Posterior Tibialis Injury Recovery Tips and Advice • Mile By Mile says:
    March 5, 2025 at 12:00 am

    […] may also like: 13 Ways to Make More Time For Running How Long Do You Need to Train for a Half Marathon? Create Tiny Habits to Take Your Running to the Next […]

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Alright, my last post about the Richmond Marathon Alright, my last post about the Richmond Marathon (maybe). This one is about lessons learned/areas for improvement.

1) Starting in the right corral- I knew I wanted to start a little slow but I think I started too far back and I ended up boxed in later in the race. 

2) Increasing fueling- I think I did the best I could on this day but now that I know more about what works/doesn’t work for me I think I can try to get my carbs/hr a little higher for next time

3) Self-doubt- On paper I knew my training showed I could run a certain time. My coach knew I could run a certain time. But deep down did I believe I could run that time? I’m not really sure.

4) My right piriformis- This little muscle has been giving me trouble FOREVER and it likes to rear its ugly head the most during races. I’m working with a PT but it’s hard to address the issue when I can go months without any problems and then at mile 15 of a marathon it starts acting up. So while this is certainly an area for improvement I am not really sure what I’ll be able to do to keep it from happening next time.

5) Ignore the data leading up to the race- During race week my sleep scores were horrible, my HRV tanked, and my watch told me I was “strained”. I might just stop wearing it during the taper next time.

What lessons have you learned during a marathon or big race?

@richmondmarathon #racerecap
It’s been 5 days since the Richmond Marathon and i It’s been 5 days since the Richmond Marathon and it feels like a lifetime ago! I am working on my full race recap which I will post on my website but I wanted to share some reflections on here. Today I want to focus on what went well. Every finish line is an accomplishment, and while every race can teach us something I think it’s always important to focus on the positive.

First off, Richmond was a great race with amazing crowd support! There were some hills (a few steeper than I expected) but nothing crazy.

Fueling went well- after my train wreck of a run a few weeks ago I had to adjust my fueling plan and took out the Tailwind High Carb and went back to regular Skratch instead. I tried to make up for the difference with gels but my overall carbs per hour was a little less than it had been when using the Tailwind. I think I got about 65 g/hour so I’d like to get that up a bit next time but I didn’t get nauseous and took gels up until the end of the race.

Shoes felt good- during that same training run I had some top of foot soreness from my laces. I changed my lacing technique and had no issues on race day. 

Mindset- I did a lot of work preparing for the race mentally and was able to use those strategies during the race. I focused on one mile at a time and shifted my goals when I knew my original goal was not going to happen. 

Pacing- Even though I didn’t run my goal pace I was able to run fairly consistently without drastically slowing down at the end. 

Recovery- I felt pretty good following the race and wasn’t even sore anymore by Tuesday. This was probably the least sore I’ve been after a marathon.

Strong training cycle- this year I feel like I’ve been clawing my way back to where I was a year ago after several illnesses last winter and spring. I had a great training cycle with @lauranorrisrunning and I know I’ve made more progress than my race time shows.

Marathons are a huge investment so I really tried to make the most of the experience!

@richmondmarathon #racerecap
Happy Medal Monday! I can’t believe the Richmond M Happy Medal Monday! I can’t believe the Richmond Marathon was only 2 days ago. I’m barely sore (probably because I was trained for a faster time than I ran) and am feeling good.

I included a list of my marathon times on the last slide here, which I posted in my stories yesterday. I got some messages about how others can relate to feeling like their times “reset” at a certain point- whether it was after an injury, having kids, or just time off from running.

I think we can get so caught up in PRs that it may take away from the overall progress made in the process of training. Sure, there are runners who come back from having kids and immediately set a new lifetime PR. But many of us will need to chip away at our times to get to where we want to be.

Focusing on progress and the gains made in a training cycle vs a specific race time can help to keep things in perspective!

Now, I’m trying to figure out spring racing plans. What’s everyone running this spring?

#medalmonday
What a day! This race (and really, this week) was What a day! This race (and really, this week) was a rollercoaster. I knew pretty early on that my legs and my lungs were not feeling my goal pace. Each time I sped up it felt really hard- way too hard to not even be at 10 miles yet. So I just focused on running the effort that my body would allow. I used all the mental strategies I had to get through each mile. Ultimately, I wanted to run faster than my marathon last November, which I did by almost 2 minutes, making this a postpartum PR. More importantly, I smiled almost the whole time.

After finishing we had to rush to get out of our hotel room and spent the whole afternoon driving home. Over the past 2 days I’ve spent almost 10 hours in the car.

More to come soon…just hoping to get home and get some rest soon!

#richmondmarathon
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