
This sweltering summer, I’ve participated in several short-distance races, such as one-mile runs and 5Ks, as part of my training for an upcoming half-marathon in October and a full marathon in November 2023. These summer events have been grueling, with the relentless heat making every step a challenge. Like many runners, I hate the idea of giving up. But how do you know when the heat has reached a level where continuing could be dangerous?
Drawing from my own struggles and insights shared in this Reddit discussion, where runners discuss their limits, I aim to guide you in deciding whether to participate in a race that promises to be a tough ordeal—or even pose health risks. Whether you’re a first-time racer or a seasoned competitor, here are key factors to consider before opting out of a race due to extreme heat and humidity.
Recognize when the heat makes running unsafe
Begin by reviewing the guidelines provided for road race organizers. If the event is still scheduled despite extreme weather conditions and the organizers haven’t canceled it, you may need to decide for yourself whether to withdraw.
If the race proceeds but the organizers offer the choice to transfer to a future date, consider this a clear indication that even experts anticipate a grueling event. In such cases, acknowledge that this won’t be the day to achieve a personal best.
If you choose to run, pace yourself
Suppose the race is still on, and you’re not opting for a transfer. Adjust your mindset for the day. Think of the race as a training session with added benefits. You’ve already paid for the experience, so enjoy the hydration stations, cheering crowds, and the medal awaiting you at the finish line. Even in extreme heat, safe exercise is possible. However, races differ from regular workouts. When you invest in a race, you aim to push yourself. Generally, heat running guidelines emphasize caution. On race day, carry additional fluids and electrolytes, seek shaded areas to cool down, take extra breaks, monitor your hydration closely, and reduce your running intensity. (This is why setting realistic expectations beforehand is crucial in deciding whether to participate.)
Setting realistic expectations
Resisting the temptation to accelerate when surrounded by other runners can be challenging, whether intentional or not. Discipline is key to maintaining a slower pace. If you’re prone to getting caught up in the competitive atmosphere (pun not intended), here are some strategies to help you keep your intensity in check.
Expectation management varies for every runner. While it may seem obvious, your ability to handle a hot race depends on your level of heat acclimatization. For instance, a Texan will likely fare better in scorching conditions than someone from Minnesota. Refer to the recommendations from the American College of Sports Medicine, but the key point is that less heat-adapted runners should slow down significantly. Stay cautious and recognize the signs of heat exhaustion and heatstroke.
Be truthful with yourself
One of the toughest mental hurdles is allowing yourself to DNF (short for “did not finish”). Before the race begins, decide that it’s okay to withdraw at any stage. While pushing through extreme heat might feel heroic in the moment, you could be putting yourself at risk of heat exhaustion or heatstroke.
For the majority of us, running in hot weather means significantly slowing down. Be honest—if you know you’ll struggle to resist the urge to push yourself too hard, it might be wiser to skip the race altogether.
