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Race Dates

2018: TBD
2017: Sunday, May 28, 2017

Course Information

Profile: Mostly Flat
Type: Loop
Surface: Road/Pavement
Certified?: Yes

Race Day Weather

Mean Temp.: 64°F (17°C)
Average High: 74°F (23°C)
Average Low: 54° F (12°C)

Historical Weather

PR Score & Course Score

PR Score: 98.51
Course Score: 98.83

Race Size

2017: 4,388 Finishers
2016: 4,181 Finishers
2015: 4,504 Finishers

BQ Percentages

2017: 14.7%
2016: 15.1%
2015: 17.7%

Miscellaneous Information

Pace Groups?: Yes

Marathon Pace Bands & Elevation Wrist Bands

See what splits you need to run for the Ottawa Marathon or other marathons, adjusted for the specific terrain of each marathon, your goal time and pacing strategies.

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Course Description

The Ottawa Marathon course is a relatively fast, scenic route with few elevation changes. It winds through some of Ottawa's most vibrant neighborhoods and popular landmarks.

Marathon Rankings

The Ottawa Marathon was the 1st largest marathon in Canada last year and was the 1st largest in 2015.

This year 14.7% of finishers qualified for the Boston Marathon and 15.1% of runners qualified for Boston in 2016.

This gives the Ottawa Marathon the 22nd highest percentage of Boston Marathon qualifiers in Canada last year and the 13th highest percentage so far in 2017.

Its Course Score of 98.83 ranks it as the 19th fastest marathon course in Canada and the 8th fastest course in Ontario.

The typical race time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the Ottawa Marathon a PR Score of 98.51. This PR Score ranks it as the 21st fastest marathon in Canada and the 8th fastest in Ontario.

Learn more about PR Scores and Course Scores on the FAQ page.

Elevation Chart

Max Elevation: 247 feet (75m)
Min Elevation: 147 feet (44m)


Recent Ottawa Marathon Reviews

4.8 Stars from 4 Reviews
View all Reviews

review of 2016 Ottawa Marathon.   

4 / 5 Stars


Race Tips

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

review of 2016 Ottawa Marathon.   

5 / 5 Stars


Starting line was easy to get to. Bag drop off was well organized. The course profile was great, mostly flat with a few risers. Nuun hydration along the course is so much better than Gatorade. It's not overly crowded, just enough so once you get farther into the race there is always runners around. It was nice having pacers available. Although, my pacer had to drop at around mile 8 due to an injury. Thankfully there was a group of about 4 of us that stuck together for the majority of the race. Not a ton of crowd support during some areas, but overall there is a good amount of people out and watching. A spectator handed me a huge chunk of ice just before the Alexandria Bridge which I was so thankful for!

The BIGGEST con was the fact they started the 1/2 marathon earlier than was planned due to hot temperatures. This meant that for my last ~5k I was running among a large crowd of 1/2 marathon runners that were at a much slower pace than I was. So it was like a crowded start where you have to weave through slower runners to get by. Except you don't have the energy to do it. At a couple points I even hopped up on the grass. Not ideal, but like I said they started the 1/2 earlier that year.

Race Tips

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

review of 2016 Ottawa Marathon.   

5 / 5 Stars


Very Hot (record temp) and drink lots on the course.

Race Tips

Pace yourself.

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

review of 2014 Ottawa Marathon.   

5 / 5 Stars


Fantastic organization. Every runner counts. Thousands of volunteers. Interesting and lovely course. Smooth registration, start. Huge community involvement. There is a half marathon, 10k, 5k, kids 2k all the same weekend - really a running festival.

Race Tips

Marathon sells out by January, half-marathon in November, so register as early as you can.

Logistical Tips (Hotels, Restaurants, Parking, Discounts, etc.)

Finish Time Equivalent

If you ran the Ottawa Marathon in 4:30:00, what would your time in the Boston Marathon be?

See how your race times would compare on other marathon courses using the Marathon Time Converter Tool.