Master Half Marathon Pacing

Mastering half marathon pacing is essential for runners aiming to have their best performance on race day.

Pacing is about finding the right balance between speed and endurance, ensuring you can maintain a steady pace throughout the 13.1 miles without burning out too early or finishing with too much left in the tank.

Today, we’ll give you the strategies and insights necessary to develop a successful pacing plan for your next half marathon.

We’ll explore practical tips and techniques to help you gauge your pace, adjust your strategy mid-race if necessary, and cross the finish line with a sense of achievement and satisfaction.

Half Marathon Pacing

How to calculate half marathon pace?

There are a few things to consider when you are calculating your ideal pace:

Determine Your Goal Time: First, establish a realistic target time for your half marathon, considering your current fitness level, training progress, and previous race times if available.

Convert Your Goal Time to Minutes: If your goal time is in hours and minutes, convert the entire time into minutes. For example, if your target is 1 hour and 45 minutes, that’s 105 minutes in total (1 hour x 60 minutes/hour + 45 minutes).

Calculate Your Pace Per Mile or Pace per Kilometer: Divide your total goal time in minutes by the half marathon distance. For miles, divide by 13.1; for kilometers, divide by 21.1. For instance, if your goal is 105 minutes, your pace per mile would be 105 divided by 13.1, which equals approximately 8 minutes per mile.

Adjust for Realistic Variations: Your pace might fluctuate during the race due to hills, fatigue, or strategy adjustments. To be prepared for these changes, it’s wise to train at slightly varied paces.

Use a Pace Calculator: Numerous online tools and calculators can help you determine your pace by simply inputting your desired finish time. A half marathon pace calculator often provides pacing charts for each mile or kilometer, which can be invaluable during your race. You can also use a half marathon pace chart.

Incorporate Pace into Training: Once you’ve calculated your goal pace, incorporate it into your training runs. Practice running at this pace to get accustomed to how it feels, and adjust your training based on how these paced runs feel.

A great way to incorporate it is during your long runs. Start with 10 minutes and add more as your fitness improves.

What is the average time to run a half marathon by age?

The average time to run a half marathon varies significantly by age and gender. Across all ages and sexes, the average half marathon time is about 1:50:15. For men, a good time is considered to be around 1:43:33, and for women, it’s around 2:00:12​​. However, these times can differ based on the age group and the level of the runner (beginner, intermediate, or advanced).

For intermediate level runners, the average half marathon times for men range from about 1:47:15 at age 15 to 2:45:46 at age 80. For women at an intermediate level, the times range from approximately 2:11:26 at age 15 to 3:32:49 at age 80​​.

It’s essential to note that these times are averages and can be influenced by various factors, including training, health, race conditions, and individual goals. For beginners, the average half marathon time is between 2:25 and 2:45, while intermediate male runners average around 1:35 and intermediate female runners around 1:45​​.

The fastest recorded half marathon times are extraordinary, with the men’s world record at 57:31 and the women’s at 1:02:52​​. These times are exceptions, reflecting elite athletic performance, and most runners will have times that are more reflective of the broader averages.

Overall, a “good” half marathon time is subjective and depends on personal goals, experience, and the specific circumstances of each race. What’s most important is setting a personal goal that’s challenging yet achievable based on your individual fitness level and running experience. A goal a lot of people have is to run a half marathon in under 2 hours.

How to Use a Half Marathon Pace Chart?

Using a half marathon pace chart is really easy and straightforward.

First, find the time you want to run your next half marathon. For example, running it under 2 hours.

Then, depending on where you live and the metric system you use, select the column under minutes per kilometer or minutes per mile.

The intersection between your goal time and the pace column will give you the average pace you need to maintain throughout the race.

I ran a half marathon in 1 hour 30 minutes. What’s my pace?

To calculate your pace for a half marathon you completed in 1 hour and 30 minutes, you’ll first convert the total time into minutes. That’s 90 minutes in total for the half marathon distance, which is 13.1 miles or about 21.1 kilometers.

If you’re calculating pace in minutes per mile, you would divide 90 minutes by 13.1 miles. If you’re working in minutes per kilometer, you would divide 90 minutes by 21.1 kilometers. This calculation will give you your average pace per mile or per kilometer that you maintained throughout the race. Let’s do the math:

If you ran a half marathon in 1 hour and 30 minutes, your average pace was approximately 6 minutes and 52 seconds per mile, or 4 minutes and 16 seconds per kilometer. This is the pace you maintained on average throughout the race. ​

What’s the Best Half Marathon Strategy

The best half marathon pacing strategy can significantly impact your overall performance and race experience. Understanding the differences between positive, negative, and even splits is crucial for devising a strategy that suits your running style and goals. Here’s a breakdown of each pacing strategy along with their pros and cons:

1. Positive Splits

Description: Positive splits occur when you run the first half of the race faster than the second half. This means starting out strong and gradually slowing down.


Can feel good initially as you start strong and fast.

May benefit runners who struggle with pacing and tend to start too slowly.


Increases the risk of early fatigue, as starting too fast can deplete your energy reserves.

Can lead to a significant slowdown in the second half, affecting overall time and race experience.

2. Negative Splits

Description: Negative splits involve running the second half of the race faster than the first half. This strategy requires a controlled and conservative start, gradually increasing your pace.


Helps conserve energy for the latter stages of the race, allowing for a strong finish.

Can improve overall race experience, as passing other runners in the second half can be a psychological boost.

Often leads to better overall times as it prevents early burnout.


Requires discipline and control, as starting too slow might leave too much ground to make up in the second half.

Can be challenging for runners who struggle to hold back at the start, especially in the excitement of race day.

3. Even Splits

Description: Even splits mean maintaining a consistent pace throughout the entire race. Your first half and second half are completed in roughly the same time.


Provides a steady and predictable race experience, which can be less mentally taxing.

Reduces the risk of early fatigue, as you’re spreading your effort evenly throughout the race.


Might not capitalize on parts of the course where you could naturally pick up the pace, such as downhill sections.

Can be challenging to execute perfectly, as external factors like elevation changes and aid stations can affect your pacing.

Choosing Your Pacing Strategy:

Experience Level: Beginners might find even splits more manageable, while experienced runners might experiment with negative splits for improved performance.

Course Profile: Consider the race’s elevation profile. Negative splits might be more achievable on courses with a downhill second half.

Personal Preference: Some runners prefer the psychological boost of starting fast (positive splits), while others enjoy the challenge of holding back and finishing strong (negative splits).

Ultimately, the best strategy is one that aligns with your personal strengths, goals, and the specific demands of the race course. Practicing different strategies during training runs can help you determine what works best for you.

Which factors influence the average half marathon pace?

Several factors can significantly influence the average half marathon pace for runners. Understanding these factors can help runners set realistic goals and develop effective race strategies. Here are some key factors that impact half marathon pace:

Weather Conditions: Temperature, humidity, wind, and precipitation can all impact race performance. Cooler, dry conditions are typically ideal for faster running, whereas heat and humidity can slow a runner’s pace.

Course Profile: The terrain and elevation profile of a race significantly affect pace. Courses with hills or at altitude can slow average paces compared to flat, sea-level courses.

Race Day Nutrition and Hydration: Proper fueling and hydration are essential for maintaining energy levels and pace throughout a half marathon. Inadequate nutrition and dehydration can lead to fatigue and a slower pace.

Mental Strength and Strategy: A runner’s mental approach and pacing strategy (like aiming for even, negative, or positive splits) can influence their average pace. Mental toughness is crucial for pushing through difficult portions of the race.

Crowding and Logistics: Large races may have crowded fields, especially at the start, which can impact a runner’s ability to maintain their desired pace. Similarly, navigating aid stations efficiently can influence overall pacing.

Race Day Conditions: Unforeseen issues like equipment problems, gastrointestinal distress, or pacing errors can also affect the average pac

Practice your race pace

Practicing your race pace is an essential aspect of half marathon training, offering numerous benefits that extend beyond the physical to the psychological.

When you consistently incorporate race pace segments into your training, especially during long runs, you’re not only conditioning your muscles to adapt to the specific demands of your goal pace, but you’re also enhancing your muscle memory. This familiarity helps in making the race pace feel more manageable and sustainable during the actual event.

Understanding how to effectively manage your energy throughout the half marathon is crucial, and practicing your race pace is key to mastering this skill.

It allows you to experience firsthand how to allocate your effort and stamina across the race distance, which can prevent the common pitfall of starting too fast and burning out early or finishing with too much left in the tank.

Mentally, running at your race pace during training builds resilience and confidence and will help you stay motivated at the end of the race. It acquaints you with the effort level required, reducing race-day nerves and bolstering your self-assurance. You’ll have a clearer idea of what to expect and how to handle various phases of the race, enhancing your mental readiness.

Incorporating race pace into long runs can be done gradually, starting with shorter segments at your goal pace and progressively lengthening these intervals.

Running the middle miles of your long runs at race pace can effectively simulate the sustained effort needed on race day, with the added benefit of starting and finishing these runs at a more comfortable pace.

This strategy not only prepares your body but also sharpens your pacing strategy, offering insights into how you can adjust your effort based on how you feel during different stages of the race.

Additionally, practicing your race pace is an excellent opportunity to fine-tune your nutrition and hydration strategy, ensuring you know how to fuel and hydrate efficiently. It’s also a chance to simulate race conditions as closely as possible, from the time of day you run to the terrain and even the weather conditions you might face.

Listening to your body during these practice runs is crucial. If you encounter signs of excessive fatigue or potential injury, it’s important to adjust your training to prevent setbacks.

Use these pace practice runs as a feedback mechanism, allowing you to gauge your fitness level and readiness, and make necessary adjustments to your race goals and strategies.

Diego Alcubierre, a passionate runner and coach, started his journey at 26 with a 10k time of 1:06:23 and has since slashed 30 minutes off his personal record. With five running and coaching certifications, Diego is committed to sharing his expertise and proven strategies to help runners of all levels enhance their performance, stay motivated, and enjoy the journey of running. At Bannister, he simplifies complex training concepts, empowering you to achieve your running goals.