Boundary Bay Marathon

Delta, BC, Canada · November 01, 2026
partly-cloudy-day48°·50° high·Breezy·Rain possible
10
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Race Day Weather

partly-cloudy-day
48°at start
51° high
Breezy
Rain possible

Cool start — fast day potential, chance of rain

A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. High humidity (84%) will make it harder to cool down through sweat — increase fluid intake accordingly.

Race day forecast available in 26 days
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Distance: 26.2mi
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Race Info

The Boundary Bay Marathon takes place each November in Delta, British Columbia, starting and finishing at Centennial Beach. It offers marathon, half marathon, 10K, and 5K distances plus a four-person marathon relay, all run as an out-and-back on a flat gravel oceanside trail along the Boundary Bay dike. The Boston-qualifier-certified marathon is typically the last BQ race of the calendar year. Proceeds benefit Ronald McDonald House BC and Yukon. Source

Race weekend

Sunday, November 1
8:30 AMMarathon (26.2 mi)
8:30 AMMarathon Relay (26.2 mi)
8:35 AMHalf Marathon (13.1 mi)
8:40 AM10K (6.2 mi)
8:45 AM5K (3.1 mi)
Area Map

Course Map

FAQ

When is the 2026 Boundary Bay Marathon?

The 2026 Boundary Bay Marathon will be held on Sunday November 1, 2026.

Is the Boundary Bay Marathon a Boston Marathon Qualifier?

Yes, the Boundary Bay Marathon is an official Boston Marathon qualifier.

What is the time limit for the Boundary Bay Marathon?

The time limit for the Boundary Bay Marathon is 5 hours.

What will the weather be like for the 2026 Boundary Bay Marathon?

The forecast calls for a high of 52°F and a low of 47°F with a 29% chance of rain.

Historical Weather

Based on 7 years of data
Avg Temp
46°F
L:42° H:49°
RunScore
9
Conditions
Rain Freq
29%
2 of 7 yrs
Wind4mph
Dew41°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
40°/52°-
10
2024
partly-cloudy-day
46°/50°-
10
2023
partly-cloudy-day
51°/57°-
8
2022
rain
36°/37°Light
8
2019
partly-cloudy-day
37°/49°-
10
2018
partly-cloudy-day
52°/56°Light
9
2017
partly-cloudy-day
31°/43°-
10