Great Eastern Run
Peterborough, United Kingdom · Sunday 23 May 2027
The Great Eastern Run is held annually in Peterborough, England. The race offers a mostly flat course, taking runners through Peterborough’s city streets, parks, and along the River Nene. Participants will pass landmarks such as Peterborough Cathedral and the Ferry Meadows Country Park. After the race, runners can explore the Cathedral Square, visit the Peterborough Museum, or relax at one of the city’s many restaurants and cafes.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:03:19
Time difference: +3.3 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain52m
Elevation High17m
Elevation Low5m
Weather Forecast
High25°C
Low18°C
Chance of Rain83%
How hard is Great Eastern Run?
Difficultharder than 53% of marathons
Flattest / easiestHardest
On our difficulty model, Great Eastern Run plays about 7 minutes slower than an average road marathon for a 3:30 runner. It ranks #544 hardest of 1151 marathons we analyse, and #30 of 57 in United Kingdom. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Great Eastern Run?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Great Eastern Run | Difference |
|---|---|---|
| 3:00:00 | 3:00:50 | +00:50 |
| 3:30:00 | 3:32:03 | +02:03 |
| 4:00:00 | 4:03:19 | +03:19 |
| 4:30:00 | 4:34:38 | +04:38 |
| 5:00:00 | 5:05:59 | +05:59 |
| 5:30:00 | 5:37:24 | +07:24 |
| 6:00:00 | 6:08:52 | +08:52 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Great Eastern Run 2027 Course Analysis
Great Eastern Run is a full marathon held in Peterborough, United Kingdom. It is scheduled for Sunday 23 May 2027. The course is run on road surface with 52m of total climbing, with its high point near 17m above sea level. For registration and full race details, visit the official Great Eastern Run website.
Elevation Profile
This is a very flat course, with only 52m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for May, the expected race day conditions are as follows. Moderate temperatures between 18°C and 25°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a high chance of rain (83%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Great Eastern Run is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Great Eastern Run against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Great Eastern Run fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in United Kingdom
Chester Marathon
Chester, United Kingdom
Road76m gainOct 2026
Kielder Marathon
Kielder, United Kingdom
Trail472m gainOct 2026
MBNA Chester Marathon
Chester, United Kingdom
Road86m gainOct 2026
Chelmsford Marathon & Half Marathon
Chelmsford, United Kingdom
Road183m gainOct 2026
Eden Marathon
St Austell, United Kingdom
Road808m gainOct 2026
Abingdon Marathon
Abingdon, United Kingdom
Road85m gainOct 2026