Average marathon time: what the data says by sex, age and pace

The short answer: the average marathon time is about four and a half hours. The largest study of finish times we found puts the mean at 4:27:00, and the average finish time at recent Chicago and New York City marathons was between about 4:22 and 4:38.

That average hides a wide spread. Men and women differ by about 25 minutes, the course and the weather can move a whole field's average by many minutes, and age matters less than most people think. Here is what the data actually shows, and where each number comes from.

The average marathon time in the US

Different sources measure different things: some report the mean (the arithmetic average), some the median (the runner exactly in the middle). The two aren't the same thing: a long tail of slower finishers can pull the mean above the median, so compare like with like. Paces below are computed from 26.2188 miles.

The Allen study is the broadest dataset: finish times for 9.5 million marathon finishes collected from public race websites, 91 percent of them from 2000 or later. Its standard deviation was 59 minutes 23 seconds: one standard deviation either side of the mean runs from about 3:28 to 5:26.

The race figures are MarathonGuide.com's own summaries of each race's results (it labels them "average finish time"), not statistics published by the race organizers, and its result counts can differ slightly from official finisher totals. Courses and race-day conditions differ, and the same race can shift from one year to the next: Chicago's average was about eight minutes slower in 2026 than in 2025.

Average marathon time for men and women

Two well-documented US datasets give separate figures:

In both, the gap between men and women is around 25 minutes, about 10 percent. A separate study of roughly 300,000 runners by Leyk et al. also found women's marathon times about 10 percent above those of men the same age.

The Deaner study also looked at pacing. On average, men ran the second half of the marathon 15.6 percent slower than the first half and women 11.7 percent slower, and women were much less likely to slow down dramatically. If your second half fell apart, you have a lot of company.

Average marathon time by age

Good, citable US data with average times for every age group is surprisingly hard to find, so we won't print a table we can't stand behind. What the research does show is clear enough:

• Age 20 to 49 makes little difference for the average runner. In the Leyk study of about 300,000 marathon and half marathon finishers, mean times were "virtually identical" for the age groups from 20 to 49.
• After 50, times slow gradually. The same study found declines of only about 2.6 to 4.4 percent per decade between ages 50 and 69. On a 4:30 marathon, 3 percent is about 8 minutes.
• Peak performance comes around 30 to 35. A 2026 review of New York City Marathon research puts peak performance at 29.7 years for women and 34.8 years for men. The same review notes that mean finish times across the whole NYC field have slowed by about 40 minutes since the 1970s as the race opened up to more runners.
• The typical marathoner is in their late 30s. Running USA put the median age of US marathon finishers in 2014 at 38: 36 for women and 40 for men.

The Boston Marathon qualifying standards are a useful way to see how much allowance is made for age. They step from 2:55 for men 18–34 to 3:30 for men 55–59, then widen faster from 60 on. They describe a fast runner of each age, not an average one.

Average halfway split

The Allen study also has a sub-sample of 868,039 finishes with full split times. Those runners passed halfway in 2:11:55 on average and finished in 4:42:07, which means a second half of 2:30:12, about 14 percent slower than the first. If you're planning a race, an even or slightly negative split is far kinder than that. The marathon splits calculator works out the mile-by-mile targets.

Average marathon pace

Pace is what you'll actually see on your watch. Here are common finish times and the even pace they require:

So the average marathon pace for a whole field is roughly 10:00 to 10:40 per mile, depending on the dataset. The marathon pace chart covers every finish time in 5-minute steps.

What is a respectable marathon time?

Finishing is respectable: 26.2 miles is a long way on any day. Beyond that, a few honest reference points:

• Roughly 4:20 to 4:55 covers the typical finish in the datasets above, depending on sex, year and race.
• Under 4:00 is a classic goal. The Allen study found 13.1 percent more runners finishing in the four minutes before 4:00 than a smooth distribution would predict, a sign of how many people push for it. At 3:00 the bunching was even stronger, at 24.6 percent. Our sub-4-hour marathon plan is built for that goal.
• A Boston qualifying time is far from average. The fastest standard, 2:55:00 for men 18–34, is about an hour and a half faster than the 4:27:00 long-run mean, and the 3:25:00 standard for women 18–34 is about an hour and a half faster than the 4:54 mean for women in the Deaner study.
• For a first marathon, any finish you're healthy at the end of is the right one. Our marathon training plan for beginners is aimed at getting to the finish, not at a time.

Why your time might not match the average

Averages are for whole fields on particular days. Your own time depends on things the average can't see:

• Weather. In 50 years of New York City Marathon results, Knechtle et al. found high temperatures were associated with race times about 8 minutes longer on average.
• Course. Hills and crowded sections add time, which is one reason averages differ from race to race.
• Pacing. In the Deaner data, runners' second-half pace was on average 14 percent slower than their first half (15.6 percent for men, 11.7 percent for women). An even pace protects your finish time.
• Training. Your preparation is the part you control.

If you want a target, run a recent half marathon or 10K and work from that rather than from a population average. And if you've got a health condition and are new to long-distance running, check with your doctor before starting marathon training.