Every runner who crosses a marathon finish line eventually asks the same question: was that a good time?
The answer is more interesting than you might expect. We looked at finish time data from over 1.2 million marathon completions across the world's biggest races — Berlin, Chicago, NYC, London, and Boston — to build a real picture of where runners actually land.
The Global Average Is Slower Than You Think
According to the RunRepeat State of Running report, which analysed 107.9 million race results, the global average marathon finish time is 4:15 for men and 4:56 for women.
But those numbers hide something important: marathon participation has exploded over the past two decades. In 1986, the average marathon field was small and competitive. Today, fields include charity runners, first-timers, and walkers. The average has been pulled significantly slower as a result.
If you finished in under 4:00, you are faster than the majority of marathon finishers globally.
Key Takeaway
Sub-4:00 puts you ahead of roughly 60% of all marathon finishers worldwide. Sub-3:30 puts you in the top 20%.
Finish Time Percentiles by Gender
Where do you actually rank? This table uses data from major marathon events to show what percentile each finish time represents.
| Finish Time | Men (% faster than) | Women (% faster than) |
|---|---|---|
| Sub 3:00 | Top 5% | Top 1% |
| Sub 3:30 | Top 19% | Top 7% |
| Sub 4:00 | Top 40% | Top 22% |
| Sub 4:30 | Top 62% | Top 44% |
| Sub 5:00 | Top 80% | Top 67% |
| Sub 5:30 | Top 89% | Top 80% |
| Sub 6:00 | Top 94% | Top 90% |
These percentiles are based on data from World Marathon Major events and RunRepeat's global race database. Boston is excluded from the averages since qualification standards create a self-selected fast field — the average Boston finisher is significantly faster than a typical marathon field.
Performance by Age Group
The data shows that marathon performance peaks in the late 20s to mid-30s for most runners — then declines gradually. Crucially, the decline is much gentler than most people expect.
| Age Group | Men Average | Women Average |
|---|---|---|
| 18–24 | 4:06 | 4:32 |
| 25–29 | 4:04 | 4:30 |
| 30–34 | 4:02 | 4:28 |
| 35–39 | 4:07 | 4:35 |
| 40–44 | 4:15 | 4:43 |
| 45–49 | 4:25 | 4:55 |
| 50–54 | 4:38 | 5:08 |
| 55–59 | 4:55 | 5:25 |
| 60–64 | 5:15 | 5:50 |
The 30–34 bracket consistently produces the fastest average times. However, this is partly a self-selection effect: runners in their early 30s often have years of training behind them and still have high physiological capacity.
Not All Marathons Are Equal
The course and field make a massive difference to finish times. Berlin, with its flat course and fast field, consistently produces the world's fastest average times. New York and Boston, with their hills and wind, run significantly slower on average.
| Race | Average Men's Finish | Average Women's Finish |
|---|---|---|
| Berlin | 3:58 | 4:18 |
| Chicago | 4:28 | 4:51 |
| NYC | 4:44 | 5:09 |
| London | 4:35 | 4:55 |
If you ran Chicago in 4:15, you'd be a faster finisher than if you'd run the same time at Berlin — because Berlin attracts a more competitive field on average.
The Takeaway: Context Is Everything
A "good" marathon time depends entirely on:
- Your age and gender — a 55-year-old woman finishing in 5:00 is performing exceptionally well relative to peers
- The race — Boston qualifiers skew the entire data set
- Your own baseline — improving from 4:45 to 4:15 is a bigger achievement than many realise
The most honest benchmark: use the percentile table above to see where you rank globally, then compare against your own age group. Both matter.
Key Takeaway
Any marathon finish puts you in a small percentage of the population who ever attempt the distance. The average adult has never run one. Percentiles among finishers are a relative measure — not the absolute one.
Data sources: RunRepeat State of Running (107.9M results, 1986–2018); AndrewMillerOnline marathon dataset (1.2M finishes from 7 major races); World Athletics.