The Edmonton Marathon organizers acknowledged a significant error in the 2026 course length. Runners reported the distance was over 26.22 miles. Initially dismissed, the organizers later confirmed an extra 674.7 meters was added.

Race director Tom Keogh expressed regret, stating the finishing times did not reflect athletes' performances. The error may have affected Boston Marathon qualifiers and personal bests. Construction work around Wellington Bridge caused the miscalculation. Read more racing coverage.

Organizers are collaborating with Athletics Canada to address the issue. They aim to recognize this year's results accurately. Runners may have missed qualifying for the Boston Marathon due to the extra distance. Related: Edmonton Marathon Course Found to Be Over Half a Kilometre Too Long.

This original Runner World brief is based on reporting from BBC Sport Athletics. Visit the source for its complete reporting, context and any later corrections.