Boundary Bay Marathon
Delta, Canada · Sunday 1 November 2026
Boundary Bay Marathon is a scenic event held in Delta, British Columbia, Canada. The race takes place on a beautiful gravel oceanside trail, offering breathtaking views of the ocean and surrounding landscape. The course is flat and out-and-back, making it ideal for achieving personal bests. The event includes a full marathon, half marathon, 10K, and 5K, catering to runners of all levels. The marathon relay is a unique feature, where teams of four runners complete the course in segments.
Difficulty Calculator
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:m
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Adjusted Time
3:47:18
Time difference: -12.7 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain0m
Elevation High9m
Elevation Low2m
Weather Forecast
High10°C
Low5°C
Chance of Rain27%
How hard is Boundary Bay Marathon?
Very Easyharder than 0% of marathons
Flattest / easiestHardest
On our difficulty model, Boundary Bay Marathon plays about 6 minutes faster than an average road marathon - a genuine PB course for a 3:30 runner. It ranks #1147 hardest of 1150 marathons we analyse, and #51 of 51 in Canada. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Boundary Bay Marathon?
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 Boundary Bay Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:50:45 | −09:15 |
| 3:30:00 | 3:19:07 | −10:53 |
| 4:00:00 | 3:47:18 | −12:42 |
| 4:30:00 | 4:15:19 | −14:41 |
| 5:00:00 | 4:43:10 | −16:50 |
| 5:30:00 | 5:10:53 | −19:07 |
| 6:00:00 | 5:38:27 | −21:33 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Boundary Bay Marathon 2026 Course Analysis
Boundary Bay Marathon is a full marathon held in Delta, Canada. It is scheduled for Sunday 1 November 2026. The course is run on road surface with 0m of total climbing, with its high point near 9m above sea level. For registration and full race details, visit the official Boundary Bay Marathon website.
Elevation Profile
This is a very flat course, with only 0m 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 November, the expected race day conditions are as follows. Cold conditions are expected, with temperatures between 5°C and 10°C. While cold weather reduces overheating risk, runners should dress in layers and be prepared for potential wind chill. There is a moderate chance of rain (27%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Surface Type: Road
Boundary Bay Marathon 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 Boundary Bay Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Boundary Bay Marathon fits your goal, these courses play out about the same on our difficulty model.