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Ottawa Marathon

Road Running covering 2 km to 42.2 km in Ottawa (Ontario, Canada)

LocationOttawa, Ontario, CanadaShow on map(45.4215° N, 75.6972° W)
Date & StatusMay 29, 2027 to May 30, 2027Date confirmed
Elevation gainUp to +190 m

Ottawa Marathon is an endurance sporting event in Ottawa, Ontario, CA focused on Road Running. It is part of World Marathon Majors Qualifier, Boston Marathon Qualifier. Key features include Public Park, Forest, Kids & Youth Races, City Run.

The race program comprises 5 competitions, including Tartan Ottawa International Marathon (42.2 km, +190 m D+), Ottawa Half Marathon presented by Desjardins (21.1 km, +95 m D+), Ottawa 10K presented by Otto’s Ottawa (10 km, +45 m D+), Ottawa 5K (5 km, +22 m D+), and Ottawa 2K (2 km, +9 m D+). The next edition is officially confirmed from May 29, 2027 to May 30, 2027. Official race regulations, course details, and registration information are provided on the organizer's website (runottawa.ca).

Official website
Ottawa Marathon in Ottawa (Work: "Rockies in the morning", Photo: Sergey Pesterev, License: CC BY-SA 4.0, Source: Wikimedia Commons)
"Rockies in the morning" · Photo: Sergey Pesterev · Wikimedia CommonsCC BY-SA 4.0
Cropped to 16:9 (960 × 540 px), WebP · Shared under the same license

Event characteristics

Public ParkForestKids & Youth RacesCity RunCulture & HistoryMulti-DayCapitals & Major CitiesBridges & Viaducts

Races & distances (5)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Tartan Ottawa International MarathonRoad Running42.2 km+190 m163 m - 243 mLoop courseRoute & profile
Ottawa Half Marathon presented by DesjardinsRoad Running21.1 km+95 m166 m - 206 mLoop courseRoute & profile
Ottawa 10K presented by Otto’s OttawaRoad Running10 km+45 m169 m - 188 mLoop courseRoute & profile
Ottawa 5KRoad Running5 km+22 m172 m - 181 mLoop courseRoute & profile
Ottawa 2KRoad Running2 km+9 m175 m - 179 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
42.2 km
Elevation gain
+190 m D+
Elevation loss
-190 m D-
Altitude range
163 m - 243 m
Gradient (Avg / Max)
0.9 % / 1.6 %
Course format
Loop course
42.2 km+190 m D+
Start (S)Finish (F)
N10203040FS45.4215° N, 75.6972° W

Elevation profile & course telemetry

Altitude from 163 m to 243 m above sea level (+190 m D+, -190 m D-)

Peak: 243 m·at 14 km·Ø 0.9 %
163 m190 m216 m243 m0 km8.4 km16.9 km25.3 km33.8 km42.2 km243 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Ottawa Marathon take place?

Ottawa Marathon takes place in Ottawa, Ontario, CA (start area at coordinates 45.4215° N, 75.6972° W). The next edition is officially confirmed from May 29, 2027 to May 30, 2027.

What races and distances are offered at Ottawa Marathon?

The race program comprises 5 competitions, including Tartan Ottawa International Marathon (42.2 km, +190 m D+), Ottawa Half Marathon presented by Desjardins (21.1 km, +95 m D+), Ottawa 10K presented by Otto’s Ottawa (10 km, +45 m D+), Ottawa 5K (5 km, +22 m D+), and Ottawa 2K (2 km, +9 m D+). The competitions belong to Road Running.

What is the course layout and elevation profile for Ottawa Marathon?

The main competition (Tartan Ottawa International Marathon over 42.2 km) is designed as a loop course featuring +190 m of elevation gain and -190 m of elevation loss, ranging between 163 m and 243 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Ottawa Marathon?

Official race regulations, course details, and registration information are provided on the organizer's website (runottawa.ca).