The LOST Race
& LOST Mile
The LOST Race is one of Canada’s oldest and prestigious open water events, recognized around the world, and attended by swimmers from around the world as well! It is hosted by the Lake Ontario Swim Team (L.O.S.T. Swimming), a non-profit, volunteer run organization founded in 2006.
The LOST Race is a fun, inclusive and competitive 3.8 km (Ironman distance) race in Oakville, Ontario, Canada.
Oakville has become the top spot for open water racing in Lake Ontario, and the LOST Race, which began in 2008 with just 8 swimmers, has grown to over 200 swimmers each year!
The route is a point to point route and is safe and fun. It is also exceptionally scenic as it passes by one of the most beautiful neighborhoods, with some of the most spectacular and expensive homes in Canada!
The majority of participants are just regular swimmers that are up for a good challenge, but over the years there have also been some pretty amazing swimmers compete too. There’s been tons of triathletes (Ironman especially), NCAA and Canadian Varsity swimmers, Olympians, people who have swum the English Channel, around Manhattan, around Key West, the length of Tampa Bay and numerous other marathon swims around the world… and of course there are even a select few who have swum across Lake Ontario!
Starting in 2016 we also started “The LOST Mile”! A bit shorter for those that haven’t worked up to the 3.8 km distance or a bit faster for those that want to do a 1 mile sprint! Either way there is something for everyone and both are a lot of fun!
So join us for an epic morning race, splashing around in one of the best open water locations in the world!
The LOST Race
LOST Race: start location
The LOST Mile
LOST Mile: start location
Schedule of Events
- 6:30AM - Registration opens at both LOST Race & LOST Mile starting locations
- 7:45AM - LOST Race pre-race briefing
- 8:00AM - LOST Race starts
- 8:15AM - LOST Mile pre-race briefing
- 8:30AM - LOST Mile starts
- 10:00AM - LOST Race cut-off (race director's discretion based on conditions)
- 10:00AM - Awards presentation begins
- 10:20AM - LOST Pier Picture
What you need to know!
- The event takes place in Oakville, ON the 3rd Saturday in August!
- The LOST Race is a point-to-point swim
- LOST Race start is at 1 Maple Grove Dr
- LOST Race finish is at Navy St Pier (1 Navy St)
- The LOST Mile is a looped course
- The LOST Mile starts and finishes at the Navy St Pier (1 Navy St), the finish of the LOST Race
- Water temperature can vary year to year, best to plan ahead and consider wearing a wetsuit if it's cold
- Water temperature is usually between 60F-70F or 16C-21C
The Routes
Race Morning Logistics
For the LOST Race:
- Arrive at Maple Grove Drive. Exact address of race start is "2 Maple Grove Drive, Oakville, ON"
- There is limited parking available at the start. Swimmers can either park across the street at Ardleigh Park or drive their cars to the finish at Navy St and then car pool back to the start. We do not have any shuttles running between the start and finish prior to the race.
- Check-in! Pick-up your cap and timing chips and get your body markings.
- Race day registration is also available for those that have not already done so.
- We will have info on temperature posted and will be making announcements based on conditions prior to the race. Race briefing begins at 7:45.
- There is free bag check available. Swimmer bags will be transported to await them at the finish. One bag per swimmer limit.
- Careful entering the water. The entry point consists of stepped rocks that are generally easily navigable but are uneven and can be slippery.
- The start is an in-water start.
- Once the gun goes off the swim begins! See you at the finish!
- Have a great race! Once you finish there's a medal as well as some awesome finisher prizes waiting for you!
For the LOST Mile:
- The LOST Mile is a looped course that starts and finishes at Lakeside Park in Oakville. Exact address is "1 Navy Street, Oakville, ON".
- Parking is available at the foot of Navy St beside the Oakville museum. There is also street parking available on the surrounding side streets.
- Check-in & race day registration are available. If you are already registered you must still check-in and pickup you cap, timing chip and get your body markings
- Bag check is available for swimmers. Limit of 1 bag per swimmer.
- Race briefing will start 15 minutes prior to the race. The course is an easy to follow one-loop course
- Race starts in water at the shore.
- Have a great race! Once you finish there's a medal as well as some awesome finisher prizes waiting for you!
Weather Records
- 2023, Aug 19 – 5C, coldest ever! Rolled over the night before, and rolled back the day after! air 30C
- 2022, Aug 20 – 72F/22C, perfect conditions, flat clear and clean water, air 30C.
- 2021, Cancelled due to Covid.
- 2020, Aug 22 – 70F/21C, beautiful conditions, flat and warm, air 30C
- 2019, Aug 17 – 65F/18C, 1 hour rain delay, then beautiful sunny and clear, air 28C
- 2018, Aug 18 – 71F/21C, fairly big chop, neutral current. Sunny and clear, air 25C
- 2017, Aug 12 – 47F/8C, cray cold, but the “Fog Year” too! Delay and shorten race! air 30C
- 2016, Aug 13 – 72F/22C, perfect conditions, flat water, air 35C. Stormed 2 hours later
- 2015, Aug 8 – 55F/12C, the “Cold Year”. Shortened it to 1k & 500m. Pretty rough too
- 2014, Aug 9 – 67F/20C, flat as a pool and a nice sunny day, not much current, air 26C
- 2013, Aug 10 – 63F/17C, flat as a pool and a nice sunny day, not much current, air 28C
- 2012, Aug 11 – 73F/23C, very rough, rain, strong negative current, overcast, air 25C
- 2011, Aug 13 – 71F/21C, flat water, slight positive current, overcast, air temp 24C
- 2010, Aug 14 – 71F/21C, very choppy, sunny, air temp 28C
- 2009, Aug 15 – 70F/21C, flat water, fairly strong positive current, sunny, air 28C
- 2008, Aug 9 – 60F/16C, small waves, overcast, air temp 22C
"LOST Race" All Time Records
Male Wetsuit
Female Wetsuit
Male Non-Wetsuit
Female Non-Wetsuit
"LOST Mile" All Time Records
Male Wetsuit
Female Wetsuit
Male Non-Wetsuit
Female Non-Wetsuit
Past Participation
- 2023 - 126 swimmers - 119W/7N
- 2022 - 160 swimmers - 96W/64N
- 2021 - cancelled due to Covid
- 2020 - 43 swimmers - informal "Covid Race"
- 2019 - 202 swimmers - 141W/61N
- 2018 - 174 swimmers - 116W/58N
- 2017 - 164 swimmers - 164W /----
- 2016 - 191 swimmers - 131W/60N
- 2015 - 130 swimmers - 101W/29N
- 2014 - 86 swimmers - 67W/19N
- 2013 - 94 swimmers - 77W/17N
- 2012 - 109 swimmers - 65W/44N
- 2011 - 85 swimmers - 56W/29N
- 2010 - 64 swimmers - 48W/16N
- 2009 - 39 swimmers - 33W/6N
- 2008 - 8 swimmers - 6W/2N
- W=wetsuit, N="naked"/non-wetsuit