Runner's Footprints

Runner's Footprints

Monday, September 22, 2025

How To Negative Split Your Next Marathon

One of the most effective strategies for improving your race times at any endurance event is mastering the art of pacing. There are a few key factors that come into play in order to effectively execute a strong race, which include your: fitness, emotions, fueling/hydrating, race day elements, and how bad do you want it? I've been racing for almost 30 years over 600 races with the marathon being my favorite distance. With 84 Boston Qualifying times out of my 163 marathons, here are my five strategies to help you execute your next strong race, while targeting the coveted negative split. 



1. Craft a Solid Pacing Strategy 

The cornerstone of executing a negative split is having a well thought out pacing strategy. The goal is to run even splits or to finish 1-2 minutes faster in the second half than the first. If you find yourself finishing more than 2 minutes faster, it may be a sign that you left too much left in the tank—meaning you could have pushed yourself a bit earlier in the race.


Create realistic time Goals A, B, and C for your race that are based on your current fitness by analyzing your training log carefully. Don't let your emotions wishfully create these time goals. Instead, your pacing strategy and time goals should be based on your fitness shown in your training log. Working with a run coach can be incredibly beneficial in developing a pacing strategy by guiding how to reflect and analyze your key runs and test races in your recent training history, particularly tempo efforts and marathon-paced workouts during the specificity phase. You can do this on your own, however, it is very easy to allow emotions to hope that we can shoot for a time instead of actually calculating what your fitness says. The key insights are in your training log. With a coach, it can be helpful to relax your emotions during race week to logically visualize and strategize your true potential what you will need to execute and earn on race day. 



2. Take into Weather, Course, and Race Environment  

Once your time goals are created and you have an idea of your pacing strategy, you must factor in: heat, humidity, altitude, course profile, race dynamics that will all come into play in your pacing strategy and race day execution. If you don't make the right adjustments, the second half of your race will adjust it for you. Again, remove emotion of what you wishfully want here but realistically take into account your fitness with the elements presented on race day. 


3. Prioritize Fueling and Hydration

A well-executed fueling strategy contributes to the success of your race strategy.  During training, pay attention to what works best for your body—experiment with different gels, chews, and hydration methods during your long runs. Once you find what works, continue to repeat it again, and again, and again. This is why marathon training should have a few months of training cycles to properly fine tune these strategies in different weather, course profiles, emotional states, distances, and intensities. Your training serves as a window to every scenario possible that can be presented to you on race day. A run coach or nutrition coach can help provide tailored advice based on your unique needs, ensuring your fueling plan is solid in training. Or continue to keep experimenting until you discover what works for you. On race day, stick to your fueling and hydrating strategy. Make adjustments on the fly if needed. Stay engaged to stay on top of it, even if and when things don't go as planned because often times they don't. 



4. Drawing Strength From Yourself / Check Your Emotions

Training for your personal best is hard, whatever the distance. You are aiming to find the stronger version of yourself. You are aiming to make your own breakthrough and explore what is possible. This is empowering. However, it is very easy to allow ourselves to fall into self-doubt either telling ourselves: we are not ready OR being too unrealistic of what your finish time may be. This is where you practice mindful visualization, breath work, inner dialogue to check your emotions to what is realistic but also empower yourself to unleash and go after your goals on race day. A coach can help you reflect on the progress you’ve achieved and the strength you’ve built, providing mental reinforcement that can offer a significant boost during the tough moments of the race.



5. How Bad Do You Want It

Why did you choose to run this marathon? Whether it’s to challenge yourself, honor a loved one, or achieve a personal goal, remind yourself of your purpose to ignite your drive and determination. As fatigue sets in and it gets painful, this powerful reason can serve as the powerful motivator, propelling you forward to push through the discomfort to finish strong. 



Negative splitting a marathon is not just about strategy. It is about mindset, preparation, and self-awareness. With a solid pacing plan, proper fueling and hydration strategies, and a reminder of your deep connection to your why, you can conquer the marathon and finish stronger than you started. Let me know if you are looking for an endurance run coach to help you reach your goals this next upcoming marathon season. Allow me to guide you to unlocking what is possible within you. 

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