Edmonton Marathon Admits Course Was Nearly 700 Metres Too Long
Runners who crossed the finish line at the 2026 Edmonton Marathon and felt their time was suspiciously slow have been proved right. Organisers admitted the course was 674.7 metres — just over four-tenths of a mile — longer than the standard marathon distance of 26.2 miles.
The Edmonton Marathon, an annual event in Alberta, Canada, is a popular qualifier for the Boston Marathon, meaning many runners line up specifically to chase a finishing time fast enough to earn entry into the world's most famous 26.2-miler. For those runners, every second matters — and an extra 674 metres at marathon pace is roughly two-and-a-half to three minutes of unnecessary running.
Race director Tom Keogh said organisers "did not deliver the standard participants deserved." Construction work around the Wellington Bridge forced a detour from the usual route, and the revised course was measured incorrectly.
Runners had complained almost immediately after the race. Organisers initially dismissed those concerns before issuing a formal admission in a statement on 20 August 2026, as first reported by The Athletic the previous day.
The timing of that admission matters for more than pride. Boston Marathon qualifying times are based on a runner's official chip time — the electronic timing recorded at the start and finish mats, not the reading on a personal watch. A course that is too long means chip times are genuinely slower, not just artificially inflated. Someone who needed a 3:10:00 to qualify for Boston and crossed the line in 3:11:30 may have been capable of 3:09:00 on a correctly measured course.
That gap is the difference between qualifying and missing out, between months of early-morning training paying off and a Boston bib slipping away.
Organisers said they are now working with Athletics Canada, the national governing body, and other partners to determine how this year's results can be recognised. It is unclear whether times will be adjusted or whether runners will need to attempt qualification at another race.
The standard marathon distance is precisely 42.195 kilometres, and certified courses are measured using a calibrated bicycle wheel to ensure accuracy. The extra 674.7 metres in Edmonton represents roughly 1.6% of the full distance — enough to skew times, distort personal bests, and derail qualification goals.
What makes this stand out is how long it took to acknowledge the error. Runners knew something was wrong as soon as they compared their GPS watches to their official times, and they said so. Only after those complaints were pushed aside did organisers take a closer look at the Wellington Bridge detour and discover the mistake.
For a race that exists partly as a Boston qualifier, trust in the measurement is everything. Edmonton now faces the task of rebuilding that trust before next year's starter's gun.
