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The Complete List of Triathlons in Ontario

Could this be the year you become a triathlet? • Credit: Subaru Triathlon Series Facebook
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The Complete List of Triathlons in Ontario

The 2020 schedule is packed with triathlons in every region of the province.

The races are scheduled and planning is underway. Below we provide a list of triathlons across Ontario. The training is up to you.

There is no one type of triathlon. Just like there’s no one kind of triathlete. Triathlon Ontario supports the development of safe and fair multisport in Ontario.

Below you’ll find a list spanning the province and the 2020 outdoor race season. There’s bound to be an event that will fit into your schedule. As for your interest and ability, almost all the races below are more properly called events, bringing together a collection of different categories and distances and classes. 

MAY 2020

May 16 - Early Bird Triathlon, Ottawa, ON 
This family-friendly season warm-up is held at Carleton University and features a closed biking course and a cozy pool swim (widely considered to be preferable than a fresh dip in a lake in mid-May). Choose from four triathlon and three duathlon events.

JUNE 2020

June 6 - Britannia Park Triathlon & Duathlon, Ottawa, ON 
The Ron Kolbus Lakeside Centre, in Britannia Park, is home to three duathlon and four triathlon events. The swim distances range from 200 to 1,500 metres, the bike distances range from 10 km to 41 km, and the run distances range from 3 km to 10 km.

June 7 - Subaru Milton Triathlon, Milton, ON 
Based out of Kelso Conservation Area in Milton, this is the Subaru series’ first race of the season. A variety of races are available: Try-A-Tri, Sprint Triathlon, along with a Duathlon. The crux of the course is the “6th Line hill” and the highlight is the scenic running course, which follows both road and cross-country trails.

June 13 & 14 - Leamington Multisport Weekend, Leamington, ON 
If you want to race in one of the oldest, fastest, and flattest races in the country, head to Leamington. There are events for all ages and skill levels, including Kids Triathlon, Adult Try-a-Tri, Adult Do-a-Du, Sprint Triathlon, Sprint Duathlon, Open Water Swims, and 5-km Run.

June 13 &14 - MultiSport Canada Gravenhurst Triathlon, Gravenhurst, ON 
Set in the heart of cottage country, this is a full weekend of racing, with something for everyone. Racers start their swim from the Muskoka Steamboats. The race weekend gives athletes an opportunity to race in the Sprint and Olympic distance triathlons, as well as Sprint and International Duathlons. 

June 20 - Smiths Falls Triathlon and Duathlon, Smiths Falls, ON 
The Smiths Falls Triathlon & Duathlon is the oldest triathlon in Canada, recently having celebrated its 40th anniversary. Smiths Falls is a beautiful town on the Rideau River that serves as the backdrop for five different triathlon and duathlon events.

June 20 & 21 - Subaru Guelph Lake One Triathlon, Guelph, ON 
The Subaru Guelph Lake One Triathlon weekend is one of Ontario’s most popular and longest-running races. There are a wide variety of races and distances to choose from for athletes of all abilities and levels of experience, including Try-a-Tri, Sprint, and standard distance triathlons and duathlons.

June 27 & 28 - Rose City Triathlon, Welland, ON 
The Welland International Flatwater Centre is one of the most exciting swim courses Ontario has to offer. The canal swim course is a 2,000-metre single-loop, clockwise swim with great viewing for spectators. Calm waters and a roaring crowd will greet racers as they exit the swim and run directly up the Grandstands into the transition area. The closed bike course is flat and fast. The long course runs on Saturday and the Sprint course on Sunday.

June 28 - The TriMuskokan Short Course Triathlon and Try-a-Tri, Huntsville, ON  
This homegrown grassroots race is an incredible community event that focuses on a great experience for everyone—first-timers and seasoned triathletes alike. It offers relay events, bike/run duathlons, and a swim/bike event.

Large group of swimmers racing in a lake.
And they are off. Photo: triontario

JULY 2020

July 5 - Sydenham Triathlon, Sydenham, ON 
This race takes place along the Rideau River corridor between Kingston and Ottawa. This scenic course features the historic Catarqui Trail as part of its running leg. Sydenham Point offers spectators a unique view of the swim course.

July 20 - Muskoka Kids Tri, Port Sydney, ON 
The Muskoka Kids Triathlon swim-bike-run fun challenge is open to kids young and not so young (ages 6 to 96). It is a wonderful experience for kids wishing to try a triathlon and can be a fun family yearly tradition.

July 25 - National Capital Triathlon & Duathlon, Ottawa, ON 
The National Capital triathlon is one of the oldest, most prestigious, and most popular multi-sport events in Ottawa. Based at the Terry Fox Athletic Facility, it features a fast, closed bike course for the adults and a surf-and-turf option for the youngest participants. 

July 12 - Kincardine Women’s Triathlon, Kincardine, ON 
This community-based event is intended to give women a venue to enter the world of triathlon. For 20 years, it has raised money for local charities. The set course follows a 375-metre swim, a 12-km bike, and a 3-km run.

July 12 - Subaru Ironman70.3 Muskoka, Huntsville, ON 
This mid-summer race is loved for its stunning beauty and naturally tough course (as if Ironman courses weren’t tough enough). In fact, it’s so well-loved, it’s sold out already. Book early next year.

July 19 - Toronto Triathlon Festival, Toronto, ON 
The welcoming TFF serves athletes of all capabilities, offering both Sprint and Olympic distance races (and relay options). The courses will take you on memorable journeys through Toronto’s unique landscape, as concrete jungles give way to picturesque hills and valleys. Designed to welcome Olympians, weekend warriors, and those looking to add a challenging event to their bucket list.

July 25 - Bluewater Triathlon, Bright’s Grove, ON 
There are eight events to choose from in Lambton County, with the feature event being an Olympic triathlon course, consisting of a 1.5-km swim, a 40-km bike, and a 10-km run. The swim leg is in Lake Huron but is parallel to the shore, and the bike leg is a fast and flat out-and-back course. This race is for both solo racers and relay teams.

July 25 & 26 - MultiSport Canada Bracebridge Triathlon, Bracebridge, ON 
From beginners to experienced athletes, there’s something for everyone at this full weekend of events in the heart of cottage country. Events ranging from Sprint Triathlon/Duathlon and Give-it-a-Tri to Olympic Triathlon/Duathlon give everyone an opportunity to participate.

July 25 & 26 - XTERRA Conquer the Crater, Sudbury ON 
This 100% charitable event is in support of the Northern Cancer Foundation’s Miles Against Cancer fund, but don’t think it’s not competitive in nature. There are 10 direct qualifying spots for the XTERRA World Championships in Hawaii. It’s open to everyone and offers events for kids. The races are based in Kivi Park.

July 26 - Niagara Triathlon, Grimsby, ON 
The Niagara Triathlon is held at a very compact site that creates a fun, family-friendly atmosphere. Participants can race in the morning and check out Wine Country in the afternoon. There are six events offered, which involve swim legs in Lake Ontario and flat bike courses.

Male athlete in santa hat running on pavement in a race.
The trick is to have fun in a triathlon. Photo: triontario


August 2 - MultiSport Canada K-Town Triathlon, Kingston, ON 
One of the oldest races in the province, the K-Town race boasts a scenic course through Kingston and along Lake Ontario. Athletes can participate in the Long Course Triathlon or Triathlon/Duathlon. Relay entrants welcome.

August 9 - Barrie Triathlon, Barrie, ON 
This community triathlon’s mission is to promote a healthy and active lifestyle for locals in Barrie and environs. The welcoming venue is perfect for families and fans, as they can cheer on competitors up to eight times along the route. The bike course is closed to vehicles; the swim begins with a beach start organized into heats determined by age. The running course is on a paved walking path.

August 16 - Thousand Islands Triathlon & Duathlon, Brockville, ON 
The Thousand Islands Triathlon & Duathlon features the historic Brockville Railway Tunnel as part of its run course. Nestled in beautiful Brockville, and based at the Brockville Rowing Club, this race is popular and fun for participants and spectators alike. 

August 16 - MultiSport Canada Toronto Island Triathlon, Toronto, ON 
Grab your gear and hop on the ferry to the Multisport Toronto Island Tri! Not surprisingly, the swim is in Lake Ontario, and the island bike route is flat and free of traffic. Events include Sprint Triathlon, Duathlon, Aquathlon, Aquabike, Give-It-A-Tri Triathlon, and relays.

August 16 - Subaru Triathlon Series - Orillia, Orillia, ON 
Orillia’s Couchiching Beach Park makes for one of the nicest venues on the ciruit. Featured events are a Sprint distance (750-metre swim, 33-km bike, 7-m run) and a Try-A-Tri event (375-metre swim, 10-km bike, 2.5-km run). Duathlon, Relay, and Swim/Bike events are also available. The lakeside running course is mostly shaded.

August 22 - Xterra Sleeping Giant, Thunder Bay, ON 
The swim will be in the clean, clear, spring-fed Marie Louise Lake. From there you experience the contrast between the beauty and the beast. Beauty belongs to the undulating, predominately singletrack mountain bike trail. Intended to be a fast ride, it will provide ample opportunity for passing. Beastly better describes the more technical yet beautiful trail run. Racers will run underneath forest canopies and over creeks, all the while enjoying views of Lake Superior.

August 22 & 23 - Cornwall Triathlon, Cornwall, ON 
The Cornwall Triathlon offers a unique experience that sets it apart from other triathlons in the region. It features traffic-free courses in the city core on both event days. Saturday events include a Duathlon of varying distances for ages 14 and under, and a Triathlon of varying distances with a pool swim for ages 7-14. The Sunday events include a 5-km run, Try-A-Tri, Sprint and Olympic Triathlon distances, and a Sprint Duathlon. The swim is in the St. Lawrence River, and the run is on a riverside recreational path.

August 29 - MultiSport Canada Wasaga Beach Triathlon, Wasaga Beach, ON  
This full day of events is based at the famous Wasaga Beach. After a swim in Georgian Bay, racers will have a flat and fast bike leg with a few small hills and a fast running course along the waterfront. Events: Sprint Triathlon, Duathlon, Olympic Triathlon, Aquabike, Aquathlon, and Relays.

Man running with a bicycle through racing gate.
Swim, bike and run. Which do you like best? 


September 5 - Subaru Triathlon Series - Guelph Two 
The second visit to Guelph Lake Conservation Area is the perfect way to cap off a season on the Labour Day long weekend. The sprint distance features a 750-metre swim, a 30-km bike, and a 7-km run that never leaves the park. Try-A-Tri, Duathlon, Relay, and Swim/Bike options are available as well.

September 5 - Draft Legal Provincial Championships, Welland, ON 
This event bills itself as the closest experience to ITU (International Triathlon Union) racing in Ontario. All participants must be Triathlon Ontario members (or members of their home PGB if not an Ontario resident). All participants, with the exception of those registered in the Age Group division, must be “draft legal” certified by Triathlon Ontario. There is a team component to the Age Group draft legal race. A team will be made up of four people (of the same gender). This creates a race within a race, and team members are encouraged to work together and employ different strategies to play to each other’s strengths.

September 5 - The Canadian Triathlon & Duathlon, Ottawa, ON 
The Canadian is the final and most exciting triathlon and duathlon event on the Somersault summer schedule. It features a dramatic finish on the Terry Fox Athletic Facility running track in front of a crowd of cheering spectators. In all, there are nine events, including the only half-Ironman event in Eastern Ontario.

September 12 &13 - MultiSport Canada Lakeside Triathlon, London, ON 
The Lakeside Triathlon covers it all on this late summer weekend. The whole family can race in events that include Sprint Triathlon, Duathlon, Aquabike, Aquathlon, Olympic Triathlon, Give-It-A-Tri Triathlon, and Relays. Youth races are offered for ages 3 to 15.

September 13 - Subaru Triathlon Series - Owen Sound, ON 
The newest addition to the Subaru Triathlon Series line-up features a Sprint and Olympic-distance triathlon. In 2020, both the Sprint and Olympic triathlons will have qualifying spots into the 2021 ITU World Triathlon Championships in Bermuda. The Sprint and Olympic duathlons will also have qualifying spots into the 2021 ITU Multisport Championships in Townsville, Australia.

September 20 - Barrelman Niagara Falls, Welland ON 
The only point-to-point race in the province, this race starts at the Welland International Flatwater Centre and winds its way through the beautiful Niagara countryside, ending at the world-famous Niagara Falls. The Welland International Flatwater Centre has become an ideal location for warm, pristine open-water swimming. Swim/Bike, Bike/Run, and Relays are all optional events.


So go ahead, pick a race that suits you. Then get training, because that’s the only way to bring the finish line into focus. Invite your friends and family to cheer you along.

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