Edmonton Marathon organizers say 2026 course ran 674 metres long

Organizers of the 2026 Edmonton Marathon have acknowledged that Sunday's race was 674.4 metres, or 0.41 miles, longer than the standard marathon distance. The finding followed complaints from runners whose watches and finishing experiences suggested the certified course had exceeded the required 42.195 kilometres.

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The Guardian reported that race director Tom Keogh announced the result of an event-team examination in a statement on Tuesday. According to Keogh, the extra distance came from a detour introduced to avoid construction around Wellington Bridge. Organizers said the event's certification process will now be reviewed to prevent the same problem from happening again.

The admission represented a reversal from the organizers' initial response. After runners raised concerns online and through Canadian media, the event had maintained that its course was officially certified and was the correct distance. The subsequent examination established that the route used on race day did not match the regulation marathon length.

The discrepancy affected more than the distance runners had to cover. The Guardian reported that it disrupted attempts to set personal bests and may have stopped some athletes from achieving record marks. It also created concern for runners using Edmonton to pursue qualification for the Boston Marathon, where small differences in finishing time can influence whether an applicant gains entry.

Olympian Natasha Wodak was among the athletes who questioned what had happened. She told CBC on Monday that her pace appeared unusually slow over the final few hundred metres and that her finishing time surprised her. Wodak said an accurate course is fundamental for competitors who invest money and preparation in trying to record a personal best.

Keogh said the event had hosted leading Canadian athletes whose official finishing times did not accurately represent their performances. While the review identified the construction detour as the source of the added distance, the organizers have not announced any adjustment to results in the reporting available so far. Their stated next step is a review of how the course was certified.