Running News Daily

For serious runners chasing personal records and breakthrough performances, mastering the negative split can be a game-changer. A negative split means running the second half of a race faster than the first—and while it sounds simple, it requires discipline, pacing, and confidence.

Elite marathoners like Eliud Kipchoge and Paula Radcliffe have used negative split strategies to break records and win major races. Kipchoge’s historic sub-2-hour marathon in Vienna was executed with near-perfect even splits, and many of his victories were sealed with strong second halves.

Why It Works

Running a negative split allows you to conserve energy early, delay fatigue, and surge when it counts most. By holding back slightly in the first half, you avoid lactate buildup and maintain better control. Mentally, it can be a major boost—there’s nothing more empowering than passing fading runners in the final miles.

Pacing too fast early is a common mistake, even among experienced runners. But a controlled first half followed by a confident finish often leads to faster times, stronger performances, and more satisfying races.

Bob Anderson’s Progressive Step-Up Method

Bob Anderson, founder of Runner’s World and owner of KATA Portugal at Anderson Manor and KATA Kenya, has long believed in the power of progressive step-ups in training. “Every mile needs to be faster than the one before,” he says.

At age 53, Anderson ran a ten-mile race in 59:17 using this principle. In one key workout leading up to the race, he ran six one-mile repeats, starting with a 5:47 and finishing with a 5:17—each one faster than the last. His rest periods ranged from three to five minutes, enough to regroup but not fully recover. Once he felt ready to run faster, he did.

Even if you don’t run negative splits during a race, training this way helps build the strength, stamina, and mental focus needed to finish fast and stay in control.

How to Train for Negative Splits

Want to incorporate this strategy into your training? Try the following:

• Progression Runs: Start easy and increase pace gradually every few miles.

• Tempo Finishes: End long runs with 2–3 miles at goal pace or faster.

• Split Tempos: Run the second half of a tempo run faster than the first.

• Step-Up Intervals: Run repeats with each one faster than the last to simulate race finish intensity.

Pacing on Race Day

A successful negative split starts with patience. Know your goal pace and run slightly slower for the first few miles. Let others surge ahead—your time will come. For the marathon, aim to reach the halfway point feeling strong and confident. Then turn it up.

Final Thoughts

Negative splits aren’t just a strategy—they’re a mindset. With smart training, steady pacing, and progressive workouts, you’ll not only race faster—you’ll finish stronger. Whether you’re chasing a new PR or just want to run your best race yet, mastering this approach can take your performance to the next level.