Triathlon Ontario

Subaru Triathlon Series - Guelph Lake Two
2026-09-05 | Guelph Lake Conservation, 7743 Conservation Dr., RR 4, Guelph, Ontario, N1H 6J1, Canada
The second visit to Guelph Lake Conservation Area is the perfect way to cap off your season on the Labour Day long weekend!
The sprint distance features a 750m Swim, 30km Bike, and a 7km Run that never leaves the park!
The Try-A-Tri features a 375m Swim, 10km Bike, 2.5km Run and is one of the most popular of its kind.
Duathlon, Relay and Swim/Bike options are available as well!
Saturday, September 5, 2026

Triathlon Ontario Draft Legal Provincial Championships
2026-09-05 07:00 - 13:00 (America/Toronto) | Welland International Flatwater Centre, 16 Townline Tunnel Rd., Welland, Ontario, L3C 2T4, Canada
Triathlon Ontario’s signature event, the 2026 Provincial Championships will be held on September 5th once again at the International Flatwater Centre in Welland.
The format for the races are Super Sprints. There is both a strategic and logistic reason for this versus Sprint or other distances. From a strategic perspective, short fast racing promotes the development of tactics, fast transitions, speed and recovery (for those doing two heats). These are areas that both Triathlon Ontario and Triathlon Canada have identified as gaps in development in our national talent pool. From a logistic point of view, having a shorter course allows for a smaller foot print, allowing for an excellent spectator experience, and providing an opportunity for relays, which we are the only event in the province to provide. Being the only event offer relays provides the following opportunity to a wide demographic: World Qualifier for Age Groupers, promotes inclusion and friendly competition among clubs, provides opportunities for development pathway athletes to prepare for Mixed Team Relays events, which are increasing in number at the World Triathlon level and has been an increasing focus of Triathlon Canada.
Returning this year is the only Mixed Team Relay competition in Ontario. There are multiple options for athletes to compete in for the “MTR”. Under the Provincial Club Championship Mixed Relay, athletes from the same sanctioned club can form a team in the following categories: Youth & Junior (14-19), Junior & U23 (16-23), U23 & Elite (23+), Age Group (16+). For those Age Groupers looking to compete in the Mixed Team Relay World Championships, club or non-club athletes within the same 10-year age group can form a team and compete in the World Qualifier.
The Championships offer multiple exciting racing opportunities in a draft legal Super Sprint format.

Elite/U23 Cup Series Finale & Provincial Championships
Junior Cup Series Finale & Provincial Championships
Youth Cup (14-15) Series Finale, Provincial Championships and Ontario Summer Games Qualifier
Age Group Super Sprint Provincial Championships
Mixed Team Relay Provincial Club Championships
Age Group Mixed Team Relay World Qualifier

Informal Course Familiarization – Friday, September 4th (anytime)
Race Kit Pick-up – Friday, September 4th 5pm
Pre-race Meeting – Friday, September 4th 6pm
Transition Opening – Saturday, September 5th 6am

Multisport Canada Lakeside Triathlon - KOS®
2026-09-12 - 2026-09-13 | Lakeside Resort, 256440 Sunova Crescent, Lakeside, Ontario, N0M 2G0, Canada
Multisport Canada covers it all on this late summer weekend. Events ranging from youth all the way to an Olympic distance triathlon and international duathlon. The whole family can race this weekend!

2026 Age Group Qualifier Standard Duathlon (1 spot per age group per gender)

Youth Cup Series – 12-13 Age Group

Race Information
Saturday: September 12, 2026
Sprint Triathlon, Duathlon, Sprint Swim/Bike, Sprint Duathlon Relay & Sprint Triathlon Relay
KOS Youth races: Ages 3-5, 6-7, 8-9, 10-11, 12-13, and 14-15
Sunday: September 13, 2026
Olympic Distance Triathlon, Olympic Swim/Bike, Olympic Distance Triathlon Relay, International Distance Duathlon and International Distance Duathlon Relay
Give-It-A-Tri Triathlon, Give-It-A-Tri Swim/Bike, Give-It-A-Tri Relay

Multisport Canada Barrelman Niagara Falls
2026-09-20 | Welland International Flatwater Centre, 16 Townline Tunnel Rd., Welland, Ontario, L3C 2T4, Canada
Sunday, September 20, 2026

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.
Athletes will start the day at the Welland International Flatwater Centre, a legacy facility of the 2015 Toronto Pan Am Games. Construction of the Welland Canal started nearly 200 years ago and was a major contributor to the growth and prosperity of southern Ontario. It has become an ideal location for warm, pristine open water swimming. You will then bike and run your way to the world famous Niagara Falls, one of the natural wonders of the world.
From the vineyards to the numerous family-friendly attractions, the Niagara Region has something to offer everyone so we hope you take some time to enjoy the sights while in the area.
Good luck to all of those racing for points, a title, a PB or just for pure enjoyment of the experience!
*Note swim/bike, bike/run, and relays are an option for the event.

2026 Age Group Qualifier Long Course Triathlon & Aquabike (1 spot per age group per gender)

2026 Provincial Championships – Long Course Triathlon and Aquabike
2026 Provincial Long Course
The Series is divided into two age groups: 40 years of age and over (Masters Division) and under 40 years of age (Age Group Division). All age groups determined as of December 31st. Points are earned by finishing within the top 20 in your age group. Points are awarded for finishing position within the age group against the entire field in your age group (not just against other members).
