How To Train For A Marathon And Successfully Complete

If you want to train and complete a marathon, you have to create an aerobic Marathon base, which means that you have to see it as a project where you create a frame and fill it out with the most important elements. The aim is how to train for a marathon and successfully Complete it. You develop a personal marathon program, and then you can establish a plan to meet this goal. We follow logical steps, but the programs can be developed from different basic principles.

🏃Train for a marathon

It is crucial for a training program that it’s personally developed and adapted. Then you can move forward from your current running level and pattern. It is not a good idea if you make a training program, where you have to run many km every week and have previous experience with injuries when the kilometer volume increases too much.

In such cases, it is a benefit to include cross-training activities. You can e.g., use the elliptical trainer/cross-trainer, which performs standing with leg and arm movements similar to running, and the machine is very gentle for your legs.

Training types go from volume training (quantity) – like with the running legend Arthur Lydiard, who really developed the Long Slow Distance – LSD concept – to quality training, which often is intervals and tempo runs.

Marathon training programs should have the purpose to optimize the training concerning both your physical shape and capacity, as well as for the marathon race or another running goal. The progress happens through systematic and flexible training, where training types are prioritized and structured according to where you are in the training course.

📈Long term results

Maybe you just want to complete one marathon and then “retire”, and that is absolutely okay; you can use a program to reach that goal. However, if you are a long-distance runner who wants long term results and improvements, then you have to train regularly throughout the year and add shape peaks related to the distances you have chosen to run and when to run them.

I want to explain and show you opportunities here, too. A training program helps to ensure your shape progresses. In this way, you can always see where you are in the course. You can use checkmarks or milestones; add notes to the program and other things that may support you.

You will also feel more certainty even excitement, when you have created an overview of the training, where you can see all the way to the goal(s) and what kind of training, you have to perform on the way.

If you are a member of an athletic club, you probably know what season planning/frame plans mean. Often, they hang on the wall by the changing room.

Let me give an example from my own running career:

🗓️Marathon Training And Periodisation

Particularly experienced long-distance runners use Periodisation since they run all year round. Periodization means that we organize the training into phases during a chosen time frame, with a focus on specific training types.

When we start up in January, we have a time frame forward to the season starting at the end of April. We call this period “winter training”. The period splits up into 4 – 8 weeks phases where each phase builds on the previous one.

The phases allow us to combine the benefits of different training types that collectively aim to reach a shape peak on a chosen goal. The first phase is always most focused on basic training, which means endurance training, the long easy runs LSD. Then we add other training types in the following phases. In this way, we increase the chances to reach a higher performance level.

Our coach uses a Gantt diagram since a Gantt project chart graphically can display all training phases in relation to one another along a timeline. Milestones illustrate a shift from one phase to the next.

Key races/test runs and a combination of training types fill out the diagram with details. Hereby we get an illustrative and structured overview of the process as we print and hang it on the wall by the changing room.

As you see, you can build up a marathon training program by using time frames and combining the benefits from different training types to optimize your performance, depending on the number of shape peaks you want to achieve and what distances you choose in the season.

👉 Read more about how supercompensation helps turn training stress into long-term performance gains

🏙️City Marathon

Many people who sign up for their first City marathon and complete, do not return to their next marathon because they don’t understand the pre-planning and just follow a program from the internet and probably chose one that is too ambitious for their level.

However, I just want you to know about your running opportunities. The frame plans are used to ensure structure in the training and provide an overview of the development you want, from the Marathon goal you have set up.

The first time frame is about basic training, where a training volume (kilometer volume) gradually increases so that your base is sufficient for your goal. The next frame plan aims to create a shape peak for the desired race.

In other words, the first frame is about creating a base, which predominantly is about quantity training, and the second frame builds further on this base, with a focus on specialization and quality training for your chosen race.

🔗Marathon training recommendations from experienced coaches and sports organizations can provide additional guidance as you build your plan.

📋Best Marathon Training Plan

The best marathon plan starts with a frame plan. The time frame describes the forthcoming training sessions and provides information about core concepts in the training such as the number of weeks forward to the race day (competition), or if you want, the number of weeks down to the race day, training types, expected training actions and training volume in kilometers per week.

A frame plan may look like this:

Week	LSD 1	LSD 2	LT Intervals	VO2 max.	Fartlek/Hill training	Km/week
1
2
4
5
…
14

Depending on your current running level, the weeks shortens or extends. The training program fills out the frame plan with details; it specifies what to do and when to do it, like when you run Fartlek or LSD.

In this way, we create a program that describes the week’s training days in a structured way. The training program will include some core elements such as training volume, variation, quality training, rest and recovery.

The core elements are put together in a way, where the body gets time to adapt to the training, which means it’s not a good idea with several hard training days in a row. It is also important that the training spreads evenly over the weekdays, and that you do not compress them to a few days after each other.

So, to target and manage your training and keep you committed and focused in the best way, it’s a benefit with a frame plan and thus a training program with a time horizon, which means a goal or milestone at the end.

When training for a marathon, it is not just your physical shape that is crucial. In particular, the body’s tendon tissue has to adapt to the training load through a sufficiently large training volume before it is justifiable to accomplish.

👉 Read more about creating a structured marathon training plan that matches your goals and experience level.

🏗️The basic training

 

A precondition to achieving a good result on the race day is good preparation – the basic training – your base. That you have created a good base and later sharpen your shape with more intensive and targeted training.

Many months of training will be tested in a relatively short time when you are at the start line of the marathon race and with the many hours, you have completed during training.

Without the basics, there is often a tendency to speed up the training and make it too intensive too early, which makes it hard to complete races both mentally and physically. Besides, you increase the risk of injuries and it contributes to destroying some of the motivation and the joy of running and hereby the training in the future.

The whole idea of basic training is that you slowly build up a training volume, which is sufficient to create a good shape peak for the race you move towards. Many experienced runners use the late autumn and winter months for basic training and to hereby create a good base.

👉 Read more about the key training types that form the foundation of marathon preparation.

🐢Long Slow Distance

The core element of the basic training consists of long slow distances – LSD. In this way, the body slowly adapts to the load that characterizes long-distance running. To avoid being too one-sided and slow by the basic training, you can run some strides, where you increase the pace more and more to 100 – 150 m or where you keep a high pace of about 50 –  100 meters, just to maintain the speed in the legs and to vary the training.

You can include them in Fartlek later in the progress. It is also something that really makes you feel energized. In the latter half of the basic training, you should gradually accustom the body to the more intensive training that characterizes the training against a shape peak. The basic training period, therefore also contains some long 1500 meter – 2000 meter intervals with intensity around the LT- threshold.

👉 Read more about why long runs are one of the most important elements of marathon training.

👟 Choosing the Right Running Shoes

The right running shoes can make marathon training more comfortable and enjoyable, especially during long runs and higher-mileage weeks. While no single shoe is perfect for every runner, it is important to choose a model that matches your running style, foot shape, and training needs.

Look for comfort, adequate cushioning, and a good fit rather than focusing solely on brand names or marketing claims. A shoe that feels comfortable over many miles is often a better choice than the latest trend.

Remember that running shoe models change frequently. Instead of searching for a specific model, focus on finding a reliable long-distance running shoe that supports your individual training goals and helps you stay consistent throughout your marathon preparation.

📅Marathon Training Program

Basic training takes place at all levels and is just as important for the experienced runner, who will provide a good basis for his marathon training as for the beginner, who starts up with jogging  just a few minutes. We all have to practice the fundamentals.

How the content in your marathon-training program composes, depends on your current running experience but remember this:

As long as you do something consistently, whether it is just walking a few kilometers in the beginning, you will make progress. You begin to obtain the physiological improvements and benefits we talked about earlier.

Basic Training for beginners and runners with very little experience in long-distance running takes a longer time than basic training for more experienced runners since it’s not a good idea to speed up the training volume too fast. Experienced runners, still have much of the basic shape from last season. They are also adapted to a greater training volume.

Intermediate experienced runners only need about 10-12 weeks of basic training. However, many beginners will “suffer” if they only train for 12 weeks before their training intensifies. As a beginner, you should train for at least 18 to 20 weeks before the training intensifies, and before you begin to think about participating in races if you want to run with maximum performance. If you have experience in other sports, you can, if necessary shorten the weeks.

Basic Training programs for Marathon runners can be designed as below:

🟢Marathon Training Beginner

Week	LSD 1	LSD 2	LT – Intervals	Fartlek/Hill Training	Km/week
1	3	2			8
2	3	3			10
4	4	3			12
6	4	4			14
8	6	4			17
10	7	5			20
11	7	5			20
12	7	6			22
14	8	6		30 min.	24
15	8	6		30 min.	24
16	9	7	2*2000 m		26
17	9	7			26
18	9	7		30 min.	28
19	9	7		30 min.	28
20	10	8	2*3000 m		30

🔵 Marathon Training Intermediate

Week	LSD 1	LSD 2	LT – Intervals	Fartlek/Hill Training	Km/week
1	8	6			26
2	10	7			28
3	11	9		30 min.	32
4	12	10		30 min.	35
5	12	9	3*2000 m		35
6	14	11		30 min.	40
7	15	12	4*2000 m		44
8	15	12		30 min.	45
9	17	13	4*2000 m		48
10	18	13		30 min.	48
11	18	13		30 min.	48
12	20	12	2*3000 m		50

👉 Read more about following a structured marathon training schedule from start to finish.

🔍Elaboration of the programs

The basic training at this level is focused on 4 key days with 2 LSD, LT – Training, and Fartlek. As you see the 4 key days throughout the week do not cover the complete training volume. The remaining amount of training accomplishes on other days at an easy pace as recovery runs. It will also give you some flexibility and make it easier to fit the training into your daily life.

Instead of a recovery run, you can sometimes practice cross-training as an alternative. Cross-training can include low-impact sports such as bicycling, swimming, exercise machines like the elliptical trainer/cross-trainer, and weight training that provide cardiovascular benefits, while also giving you a physical and mental break from running.

You can do most of that in a fitness center, or maybe you have an exercise machine under your bed. These types of endurance training can occasionally replace running, so you also avoid overtraining or other overload injuries. You may eventually note in your training diary, what kind of cross-training you have accomplished.

👉 Read more about the key factors that contribute to steady marathon training progress.

🏃‍♂️Long slow distance (LSD 1)

increases slowly in volume through the program. Toward the end of the program, you will be able to run the expected number of kilometers without breaks.

👉 Read more about how endurance training develops the aerobic foundation needed for marathon success.

🏃‍♂️Long slow distance (LSD 2)

the pace here may be a little higher, but not more than “talk pace”. It will also be a good idea if you can find one or more hilly running routes to this LSD 2, both to create variation in the training but also to increase the training effect a little from LSD 1.

👉 Read more about endurance workouts that help improve stamina and long-distance performance.

⚡Lactate threshold training (LT – training)

At this level is also about variation to keep up the motivation. The pace should be nearby the lactate threshold, which means you should run faster than the LSD runs. This type of training helps to harden the body. You start getting used to a harsher and more direct way to train.

The pace should be near your half-marathon pace. If you have not run so far before, the LT corresponds roughly to the pace you can maintain for an hour with maximum effort. You can also use a heart rate monitor as a sports watch to find your LT zone.

👉 Read more about improving your lactate threshold to maintain a faster pace for longer.

🎯Fartlek

Becomes a good alternative to the intervals. It is especially good for runners who are not accustomed to training at a high pace. By using fartlek, you decide how hard it should be from how you feel. This will make it easier for your body to get used to harder training from your own feeling.

It is therefore also easier to adapt the training to how hard the previous days of training have been. You get little by little a good sense of pace shift and your increased strength. However, it may be beneficial with a set of rules before you start.

👉 Read more about how fartlek training can improve both endurance and speed.

⛰️Hill Training

Hill training performs like intervals and gives good muscle strength, coordination, flexibility, better running economy and variation. Try finding hills at about 1000 – 1500 Meter we prefer a circular route.

Then you can run easy downhill and on the flat pieces, and when it goes up-hills run with an intensity about the LT – Threshold. Find your own capacity ex. 4 times up-hills gives about 20 – 25 min. training around LT – Threshold.

👉 Read more about how strength and efficiency contribute to better running economy.

🚀Speed training workouts

It will also be a good idea to include speed training in your Fartlek. Strides are 100 – 150m accelerations where you start at low pace and accelerate to about 90% of your max speed, and then gradually slow down to jogging again.

One stride should take you about 20-30 seconds. Later in the program, you can include 5 – 10 strides in your 3 km race pace. Maybe it sounds unusual, that you as a coming marathon runner may have the benefit of speed training.

The purpose of strides at this level is that you avoid becoming too slow and one-sided by the training. Besides, it will make the marathon race considerably easier, if you include strides in the training because many beginners/intermediate runs with a slow cadence.

Quick short steps are actually more effective than longer slow steps. The shorter steps, the less you “jump up and down” when you run. Thereby is less energy needless wasted (better running economy).

With this kind of speed training, you will often discover that the other runs will be more effortless and comfortable. You program your legs to move faster, by activating and increasing the reactivity of your nervous system, which matches your running movements.

You will often experience the effect of speed training after a couple of weeks. Suddenly you run more easily because of the increased cadence. When you have completed the basic training here you are ready for the specialization.

👉 Read more about structured speed training workouts that improve running performance.

💬 FAQ Section

❓How long does it take to train for a marathon?

Most beginner marathon runners should allow at least 16 to 20 weeks of structured training. More experienced runners may adjust the duration based on their fitness level and goals.

❓What is the most important workout in marathon training?

Long slow distance (LSD) runs are often considered the cornerstone of marathon preparation because they build endurance, mental strength, and aerobic capacity.

❓How many days per week should I train for a marathon?

Most marathon training plans include 3 to 6 running days per week, depending on your experience, recovery ability, and target finish time.

❓Should beginners use speed training?

Yes, but in moderation. Beginners benefit most from building endurance first, while adding small amounts of speed work to improve running efficiency and fitness.

❓What is the purpose of lactate threshold training?

Lactate threshold training helps you maintain a faster pace for longer before fatigue becomes a limiting factor, making it an important part of marathon preparation.

❓Can I complete a marathon without following a strict training plan?

It is possible, but a structured marathon training plan significantly improves your chances of finishing successfully while reducing the risk of injury and overtraining.

💭 Final Thoughts

Training for a marathon is about much more than simply following a schedule. It is a journey of gradual adaptation where endurance, strength, pacing, recovery, and mental resilience all come together over time.

Many training plans tell you what to do, when to do it, and how many miles to run. But understanding why you are doing each workout is what creates confidence and long-term progress. Every long run builds endurance. Every lactate threshold session improves your ability to sustain pace. Every recovery day allows your body to adapt and become stronger.

Whether your goal is to complete your first marathon, set a personal best, or simply enjoy the process of becoming a better runner, consistency will always be your greatest ally. Marathon success rarely comes from one perfect workout. Instead, it comes from hundreds of small decisions made over weeks and months of purposeful training.

Remember that every runner starts from a different place. Compare yourself only to where you were yesterday, last month, or last year. Stay patient, trust the process, and focus on steady improvement rather than perfection.

The marathon is not just a race—it is the reward for all the training, discipline, and determination that came before it. Enjoy the journey, learn from every run, and take pride in every step that moves you closer to the finish line.

👉 Read more about managing marathon training intensity using the Borg Scale and perceived effort.

🏁 Know someone dreaming of running a marathon? Share this guide and help them take the first step toward the finish line.

📅 Updated May 2026: This article has been revised to reflect current marathon training principles, endurance development strategies, periodization concepts, and performance optimization methods.