Average Marathon Time: By Age, Sex, and Ability
The Headline Number: About 4:32
The most widely cited figure for the average marathon time is 4 hours, 32 minutes, and 49 seconds. That number comes from a RunRepeat analysis published in 2019 that examined more than 19 million marathon results from races held around the world over several decades. It works out to roughly 10:24 per mile, or about 6:27 per kilometer.
US-specific averages run a little faster, generally somewhere in the 4:30 to 4:45 range depending on the year and the events sampled. Large city marathons with broad amateur participation — think Chicago, New York, London — tend to pull the average toward the higher end. Smaller, more competitive fields run faster. The headline figure is useful as a single anchor, but it papers over a lot of structure that becomes visible once you split the data by sex, age, and ability.
The more useful question isn’t what is the average marathon time. It’s what is the average marathon time for someone like me, and how does mine compare. That’s what the rest of this post is for.
How the Average Has Changed Over Time
The marathon is slower today than it was a generation ago. That sounds counterintuitive — training science has improved, shoe technology has transformed the sport at the elite level, and global participation has exploded — but the bulk of those improvements have been concentrated at the top of the field. The average has moved in the opposite direction.
RunRepeat’s analysis found that the global average marathon time has gotten roughly 40 minutes slower since the mid-1980s. The mechanism isn’t that runners are less fit. It’s that the population running marathons has changed. In 1986, finishing a marathon was a fairly self-selecting accomplishment — the people on the start line were disproportionately experienced runners who’d trained seriously for the distance. Forty years later, the marathon has become a bucket-list goal accessible to a much wider range of fitness levels, and a much larger share of finishers are first-timers walking significant portions of the back half. That’s what’s pulling the average down.
Two things follow from this. First, comparing your time to the global average is comparing yourself to a population that includes a large number of casual finishers. If you trained seriously for the distance, you’re almost certainly faster than the average even if your time feels unremarkable. Second, the historical trend doesn’t tell you anything about whether you can run faster — it only tells you that the average finisher’s profile has changed.
Average Marathon Time by Sex
Sex is the single largest demographic factor in marathon performance, and the gap is fairly stable across populations and years.
| Group | Average Time | Average Pace |
|---|---|---|
| Men (global) | ~4:21 | ~9:58/mile |
| Women (global) | ~4:48 | ~11:00/mile |
| All runners | ~4:32 | ~10:24/mile |
The roughly 27-minute gap between men’s and women’s averages reflects physiological differences that show up at every level of the sport, from world records to back-of-pack finishers. At the elite end, the men’s world record is 2:00:35 (Kelvin Kiptum, Chicago 2023), while the fastest women’s marathon on record is 2:09:56 (Ruth Chepngetich, Chicago 2024) — a gap of about 9 minutes at the top. The percentage gap is actually smaller at the elite level than at the average level, partly because elite fields are more selected on training and talent than amateur fields are.
For context on what these averages mean as a pace target, a 4:21 marathon runs at about 9:58/mile. A 4:48 marathon runs at about 11:00/mile. Both are very achievable with consistent training, even for runners who don’t consider themselves fast.
Average Marathon Time by Age
Age affects marathon performance less than most runners assume, at least within the typical adult range. Endurance is one of the more durable athletic qualities, and the marathon — which rewards aerobic capacity and pacing discipline more than raw speed — is one of the events where masters runners stay competitive longest.
Rough median marathon times by age decade look approximately like this:
| Age Group | Men | Women |
|---|---|---|
| 18–29 | ~4:15 | ~4:45 |
| 30–39 | ~4:20 | ~4:50 |
| 40–49 | ~4:25 | ~4:55 |
| 50–59 | ~4:35 | ~5:05 |
| 60+ | ~4:50 | ~5:20 |
These are approximations drawn from publicly available race result distributions and percentile-based running performance databases. The specific number for your race will vary, but the shape is consistent: performance holds reasonably steady through the thirties and forties, drifts modestly slower through the fifties, and slopes off more noticeably after 60. The drop from a runner’s peak performance to age 50 is often smaller than people expect — frequently less than 10% in well-trained athletes — and is typically dwarfed by the variation between trained and untrained runners of the same age.
If you want a more personalized comparison than a median by decade, plug a recent race result into the Race Time Predictor. The predictor uses your actual fitness — not an age-group average — to project where you stand at the marathon distance.
What Counts as a “Good” Marathon Time
The honest answer is good for whom, and the question splits into a few different reasonable definitions.
Good for a first-time marathoner. Finishing the distance is the standard most first-timers actually care about. A finish anywhere from 4:00 to 5:30 is well within the typical range for a healthy adult who has trained consistently for 16 to 20 weeks. Sub-4:30 puts you ahead of the global average for men; sub-5:00 puts you ahead of it for women.
Good for a recreational runner with several marathons behind them. Once you’ve run two or three marathons and have a sense of what training works for you, sub-4:00 is the milestone a large fraction of dedicated amateurs aim for. It corresponds to about 9:09/mile, which is comfortably achievable with appropriate marathon-specific training and pacing.
Good as a competitive amateur. Sub-3:30 puts a man into the upper tier of amateur runners; sub-3:00 is a serious accomplishment that requires consistent training, strategic pacing, and a fair amount of natural aerobic capacity. For women, sub-4:00 and sub-3:30 mark the equivalent thresholds.
Good as a qualifier for elite amateur events. The Boston Marathon’s qualifying times are the most widely recognized objective benchmark for a “good” marathon, and that’s worth looking at on its own.
Boston Qualifying Times in Context
Boston Qualifying (“BQ”) standards are tighter than most amateur runners realize, and significantly tighter than the global average suggests. A small sample:
Effective for the 2026 Boston Marathon and onward, the BAA tightened every standard by five minutes from the prior schedule. The current qualifying times:
| Age Group | Men | Women |
|---|---|---|
| 18–34 | 2:55 | 3:25 |
| 35–39 | 3:00 | 3:30 |
| 40–44 | 3:05 | 3:35 |
| 45–49 | 3:15 | 3:45 |
| 50–54 | 3:20 | 3:50 |
| 55–59 | 3:30 | 4:00 |
A 2:55 marathon — the men’s standard for the youngest qualifying group — works out to 6:40 per mile sustained for 26.2 miles. That’s nearly two minutes per mile faster than the global average. Hitting a BQ time puts a runner well into the top fraction of marathon finishers in their age group, and in recent years, qualifying times alone haven’t been enough to guarantee entry — the field is oversubscribed, and an additional “cutoff” of several minutes under the standard has been required.
The BQ tables matter not because qualifying for Boston should be everyone’s goal, but because they offer the clearest objective benchmark for what serious amateur performance looks like by age and sex. They’re the line between “trained enough to finish well” and “trained enough to compete.”
Why Your Number Matters More Than the Average
Knowing the average marathon time is useful exactly once: it gives you a sense of the population you’re racing alongside. After that, it stops being a productive comparison.
The number that actually matters for race planning is the one calibrated to your current fitness, not the average for your demographic. A recent shorter race — a 10K, a half marathon, even a hard 5K — gives you a much better starting point for a marathon goal than any age-group median ever will. The VDOT Calculator takes a recent race result and translates it into a predicted marathon time along with the training paces that prediction implies. That’s a more honest answer than “the average 40-year-old man runs 4:25.”
Once you have a target time, the next step is figuring out how to actually run it. A predicted finish only translates to a real finish if your pacing on race day reflects what your training has prepared you for. The Marathon Pace Calculator guide walks through how to turn a goal time into a workable per-mile or per-kilometer plan, and the marathon pacing strategy guide covers the race-day execution side — fueling, even versus negative splits, and the late-race decisions that decide whether the prediction holds up.
The runner who beats the average isn’t the one who trains hardest in absolute terms. It’s the one who trains appropriately for the distance, paces honestly, and treats the marathon as a specific event with its own demands rather than a long version of a 10K. That’s mostly a planning problem, and planning is the thing tools are good at.
Pacesmith puts the Race Time Predictor, VDOT Calculator, and split planner together in one app for a one-time $1.99 — no subscription, no account, and it works offline. If you want to know what time you can realistically run, and how to pace it on the day, that’s the place to start.