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Turn your long run into a speed-building workout

A few years ago, an SMM staffer’s training plan called for 10 miles on a Sunday morning, but they had grown a little stale on their regular running routes. On a whim, they signed up for a local 5K and picked up the bib well in advance. On race morning, they ran a slow 6-mile loop that landed them at the starting line just before the gun went off, followed by 3.1 miles at a quick pace, and finally, a 1-mile cool down. Boredom was banished and they had a blast in the process. Ever since, they wondered why more plans don’t call for mixing speed and LSD.

According to this new story, we may have stumbled onto something: “The Pro Workout Behind Every Fast Half Marathon (Scaled for You).” Inserting intervals into a 10- to 12-mile session teaches your body to maintain pace on tired legs. This piece suggests running three sets of two-mile repeats, separated by about three minutes of easy jogging. You can aim for half-marathon effort during the first mile of each repeat, and then run the second mile roughly three to five seconds faster.

On the other end of the spectrum, you might simply find yourself needing an unplanned breather. If you are wondering whether pausing ruins your workout, “Is It Okay to Take Breaks During Long Runs? Experts Explain When It Helps and When It Signals a Red Flag” notes that quick stops do not negate the cardiovascular benefits of your time on foot. Strategic walk breaks are a valid training tool, though consistently feeling forced to stop could signal that you are running too fast, underfueling, or experiencing high external stress.

When you feel properly fueled and ready to experiment with pacing, we suggest checking out “5 Smart Variations of Marathon Training Long Runs.” Coach Greg McMillan outlines several ways to mix things up, including injecting quick surges to avoid boredom, finishing the final few miles fast, or alternating between faster and slower miles. Testing out these different strategies may help you discover which method best prepares your body for the unpredictable demands of race day.

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The Six Minute Mile logo imposed on a photo of runners on a starting line.
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