San Dimas Triathlon
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A gorgeous swim in the Puddingstone Reservoir, followed by a trail run and cycle through the Frank G Bonelli Regional County Park, you will get a great taste of this scenic area. A challenging course geared to your level of training, endurance and personal goals to take on!
Olympic, Open , and Sprint
Sun, Nov 20, 2022
San Dimas, United States
The event experience
Based on location
Invite friends, earn credit
After booking your event, invite your friends to join you and you'll get $10 credit if they make it their first Let's Do This booking.
Where and when
Frank G. Bonelli Regional Park, 120 E Via Verde Dr, San Dimas, CA 91773, USA
Sun, Nov 20, 2022
This is perfect for any abilities, especially first-timers. This race is achievable for anyone whether you're a weekend warrior or a complete beginner. There will be picturesque views trails and paths throughout.
The sprint is for people looking to step up their distance. This is a fast and furious course that will ensure a successful finish if you keep focused. This event is for budding triathletes. This will be on trails and paths throughout.
The Olympic triathlon is for those seasoned veterans who want to push their distance a bit further. First, you will begin with a lake swim followed by the 28.6-mile bike route and the 6.2-mile run.
Organizer route images
- Chip-timed results
- Prizes for top finishers
How to get there
Frank G. Bonelli Regional Park, 120 E Via Verde Dr, San Dimas, CA 91773, USAGet full directions
The closest airport is Ontario International Airport.
Event day logistics
2:00pm - 6:00pm Packet pick-up & Fitness Expo
3:00pm - 6:00pm Athlete meeting
5:00am - 7:00am Packet pick-up
5:00am - 7:00am Gear drop-off open for both races
7:00am - 2:00pm Fitness expo
6:40am Transition area closed to sprint athletes
6:50am Sprint pre-race meeting
7:00am Sprint wave starts & Olympic distance transition closed
7:10am Olympic pre-race meeting
7:20am Olympic wave starts
9:40am Transition area closed
9:50am Athlete meeting for open distance athletes
10:00am Open wave starts
10:45am Awards ceremony
1:00pm Transition areas close to Open, Sprint, and Olympic distance athletes
Note, athletes must be present at their awards ceremony to receive an award. Unclaimed awards will be shipped and the athlete will be responsible for a $10 shipping and handling fee.
When does the San Dimas Triathlon start?
Please arrive between 5:00am - 7:00am to register and drop off your gear.
What ability do I need to be to enter the San Dimas Triathlon?
All abilities are welcome to join the open swim - this is for complete beginners to get a taste for a triathlon race. The Sprint is for beginners who are looking to step up their distance and test their endurance. The Olympic triathlon is for participants who train regularly throughout the week.
When will I get my race packet for the San Dimas Triathlon?
Race packets will not be sent to participants you must pick them up the day before the race or on the day.
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