Edmonton Marathon organisers say 2026 route was 674m too long

The organisers of the Edmonton Marathon in Alberta, Canada, have admitted that the course for their 2026 edition was 674 metres too long, exceeding the standard marathon distance of 26.22 miles. The error was flagged by frustrated runners who noticed the discrepancy on their GPS watches after the race. The Edmonton Marathon is frequently used as a qualifying event for the prestigious Boston Marathon, raising concerns about the validity of times recorded on the incorrect course.