Average Boston Marathon Finish Time: Data by Age + Gender

The Boston Marathon is one of the most iconic marathons in the world and one that many runners set their sights on as a long-term goal.

When thinking about running this famous marathon, you may wonder what the Boston Marathon average times are, as in most cases, you do need to qualify to be able to participate.

But what’s the average Boston Marathon time overall? How does the average Boston Marathon finish time compare to other marathons? And how have times changed in recent years with tighter qualifying standards?

We’ve crunched the numbers on 25 years of Boston Marathon data — from 2000 through 2025 — to answer all of these questions and more.

What Is the Average Boston Marathon Time?

The average Boston Marathon finish time from 2000 to 2025 is 3:52:12. This equates to an average pace of about 8:52 per mile (5:30 per km).

The BAA does not compile average finish time data in their published results, but Marathon Guide and other sources post basic statistics for each year since 2000, including the total number of finishers and the average finish time.

After combing through the Boston Marathon results for each year since 2000 (omitting 2020 because the race was virtual), we created the table below displaying the number of finishers and the average Boston Marathon finish time each year through 2025:

It is interesting to look at the data and note the outliers. For example, the 2012 Boston Marathon average time was considerably slower than usual due to unprecedented heat on race day. Meanwhile, the 2013 average was the fastest on record at 3:29:52 — but this was the year of the tragic Boston Marathon bombing, so the race had to be stopped prematurely, and slower finishers were diverted away from the finish line.

More recently, the 2025 Boston Marathon saw one of the fastest overall fields in race history, with an average of 3:43:13 — about 10 minutes faster than 2024. Ideal weather conditions and tighter qualifying standards both played a role.

If we eliminate the 2013 outlier from the data, the average Boston Marathon time shifts to about 3:53:05. If we also remove the heat-affected 2012 race, it lands at approximately 3:52:05.

Average Boston Marathon Time by Gender

The average Boston Marathon finish time differs significantly between men and women. Based on recent data:

• Men’s average Boston Marathon time: approximately 3:35
• Women’s average Boston Marathon time: approximately 3:55

In the 2025 Boston Marathon specifically, 16,103 male finishers averaged 3:33:31, while 12,210 female finishers averaged 3:56:02. The race also saw 71 non-binary finishers — reflecting the BAA’s addition of a non-binary division starting in 2023.

The roughly 20-minute gap between men’s and women’s averages is consistent with the gender differences seen across marathon finishing times generally, and mirrors the 30-minute gap in Boston Marathon qualifying standards between men and women.

Is the Average Boston Marathon Time Fast?

Analyzing average Boston Marathon times is interesting because the instinct of many runners is that Boston Marathon average times are likely faster than the average marathon time for a typical marathon because runners have to qualify for the race.

That means that there’s a certain standard or level that runners have to have to even run the race, whereas most marathons are completely open to all ability levels or might have a generous cutoff time.

However, there are a couple of important caveats that actually render this a good idea in theory but not all that true in real life.

The average marathon finish time across both sexes, all age groups, and all levels is roughly 4:20 to 4:30 depending on the source and year.

The average Boston Marathon time of 3:52:12 is considerably faster than the typical marathon — but that’s because the field is pre-selected through qualifying standards. What’s more interesting is understanding why Boston’s average isn’t even faster given those standards.

The Course Is Deceptively Difficult

The Boston Marathon course is notoriously challenging and, in fact, deceptively so. It begins with about 10 kilometers (6.2 miles) of downhill running, which sounds easy in theory but can really trash your quads for the remaining 20 miles of the race.

Runners who have not done a lot of downhill training often face the brutal realization that a lot of early downhill pounding comes back to bite them in terms of their leg strength and energy in the later miles. Additionally, there are a series of hills with some significant climbs around miles 15 to 16 of the course — the famous Heartbreak Hill section.

Overall, the Boston Marathon course is certainly not as fast as a flat course like the Chicago Marathon or Berlin Marathon.

Charity and Invitational Runners

The second, and often overlooked factor, that affects the average Boston Marathon finish time is the fact that there are plenty of runners in the race who have not qualified but are running to represent a charity or have been invited to the race by the BAA.

These marathon runners may have a significantly slower race pace than Boston Marathon qualifiers and can ultimately bring down the average Boston Marathon time.

For example, entrants who sign up with a charity and commit to fundraising might only be able to finish the race in six hours, taking on the Boston Marathon as either an opportunity to raise awareness for a cause that is near and dear to their heart or to run the iconic race though they may never be close to qualifying.

While there is absolutely nothing wrong with these goals, and no goal is “better” or “less worthy” than another, these types of slower finish times will bring down the average.

Boston Marathon Course Records

The Boston Marathon course records, as of 2025, are:

• Men’s course record: 2:03:02 — Geoffrey Mutai (Kenya), 2011
• Women’s course record: 2:17:22 — Sharon Lokedi (Kenya), 2025

Lokedi’s 2025 record was a massive breakthrough, taking 2 minutes and 37 seconds off the previous women’s course record of 2:19:59 set by Hellen Obiri in 2024. It was the biggest improvement to the women’s course record in over a decade.

For context, the current marathon world records are 2:00:35 for men (Kelvin Kiptum, Chicago 2023) and 2:09:56 for women (Ruth Chepngetich, Chicago 2024). The gap between the world records and Boston course records reflects the difficulty of the Boston course compared to the flat, fast Berlin and Chicago courses where records tend to fall.

2025 Boston Marathon Results and Highlights

The 2025 Boston Marathon (the 129th running) took place on April 21, 2025, with 28,384 finishers — one of the largest fields in recent years. A 98.4% completion rate and favorable weather made it one of the fastest Boston Marathons on record for the overall field.

Key results from the 2025 Boston Marathon:

• Men’s winner: John Korir (Kenya) — 2:04:45, the second-fastest men’s winning time in race history. Korir became the first sibling pair to win the race, following his brother Wesley Korir’s 2012 victory.
• Women’s winner: Sharon Lokedi (Kenya) — 2:17:22, a new course record. Lokedi edged out two-time defending champion Hellen Obiri (2:17:41).
• Overall average finish time: 3:43:13
• Men’s average: 3:33:31 (16,103 finishers)
• Women’s average: 3:56:02 (12,210 finishers)

The 2025 race was roughly 10 minutes faster on average than the 2024 edition, which had been affected by warmer weather conditions.

Boston Marathon Qualifying Times (2026 Update)

To run the Boston Marathon, most runners need to achieve a qualifying time (known as a “BQ”) at an eligible marathon. The qualifying standards are graded by age and gender.

For the 2026 Boston Marathon (the 130th running), the BAA tightened qualifying standards by five minutes for athletes under the age of 60. This was in response to record numbers of qualifier applicants in previous years exceeding the available field size.

Here are the current qualifying times for the 2026 Boston Marathon:

It’s important to note that meeting the qualifying standard does not guarantee entry. For the 2026 race, 33,267 qualifier applications were received, but only 24,362 were accepted. The effective cutoff was 4 minutes and 34 seconds faster than the qualifying time — the tightest cutoff in race history.

This means that to realistically get into Boston, you need to beat your qualifying time by at least 5-6 minutes as a safety margin. For more details, check out our complete guide to Boston Marathon qualifying times and cutoffs.

What Is the Boston Marathon?

For beginners who are unfamiliar with the race, the Boston Marathon is the oldest annual marathon in the world, with 1897 being the inaugural year. The 2026 edition marks the 130th running of the race.

It is organized by the Boston Athletic Association (BAA) and held on Patriots’ Day, which is the third Monday in April. The only exceptions in modern history were the 2020 Boston Marathon, which was virtual, and the 2021 edition, which was moved to October due to the COVID-19 pandemic.

Like all marathons, the Boston Marathon distance is 26.2 miles (42.195 kilometers).

As a point-to-point course, the Boston Marathon takes runners from the starting line in Hopkinton, Massachusetts, to the famous finish line on Boylston Street in Boston. The 2026 race features 30,000 participants from more than 130 countries and all 50 U.S. states, with a new six-wave start format (up from four) designed to improve the race-morning experience.

The Boston Marathon is one of the Abbott World Marathon Majors, along with the New York City, Chicago, Tokyo, Berlin, and London Marathons.

Frequently Asked Questions

What Is a Good Boston Marathon Time?

A “good” Boston Marathon time depends on your age and experience. Given that the overall average is about 3:52, finishing under 3:30 would put you well above the average field. For most age-group qualifiers, simply achieving the qualifying standard — and then beating it by enough to get accepted — represents an excellent performance. Anything sub-3:00 is exceptional for a non-elite runner on the challenging Boston course.

Is the Boston Marathon Harder Than Other Marathons?

Yes, the Boston Marathon course is generally considered harder than other major marathons. The early downhill miles can damage your quads, and the Newton hills (including Heartbreak Hill) come at miles 15-21 when fatigue is setting in. The course records are significantly slower than world records, which are typically set on flat courses like Berlin and Chicago. Most runners report that their Boston time is slower than their qualifying marathon time.

How Fast Do You Need to Run to Qualify for Boston?

As of the 2026 standards, the fastest qualifying time is 2:55:00 (men aged 18-34) and 3:25:00 (women and non-binary aged 18-34). The qualifying times get progressively more generous with age, up to 4:50:00 for men and 5:20:00 for women aged 80+. However, simply meeting the standard is usually not enough — in 2026, the effective cutoff was 4:34 faster than the qualifying time. Read our full Boston Marathon qualifying times guide for the complete breakdown.

Why Is the Boston Marathon Average Time Slower Than You’d Expect?

Three main reasons: (1) the course is hilly and deceptively difficult; (2) charity and invitational runners who didn’t need to qualify bring down the average; and (3) the qualifying standards are age-graded, so older runners with qualifying times of 4:30+ are part of the average. When you factor all of these together, the average Boston Marathon time of 3:52 makes sense despite it being a “qualifier-only” race.

Have you run the Boston Marathon, or are you working toward qualifying? Check out our complete guide to the Boston Marathon, our qualifying times guide, or browse our marathon training plans to help you get there.