Tulsa Triathlon provides a distance challenge for all athletes. Whether you are 5 or 95 you will enjoy the beautiful scenery at Birch Lake near Barnsdall, Oklahoma as you experience the multi-sport lifestyle like no other event.

Events include Sprint Triathlon (500 meter open water swim, 12 mile road bike, 5K road run), International/Olympic Triathlon (1500 meter open water swim, 40K road bike, 10K road run), Tulsa Half (1.2 mile open water swim, 56 mile road bike, 13.1 mile road run). There are two Aquabike distances (1500M/40K and 1.2 mile/56 mile) along with a kids triathlon for ages 5 to 12.

• Beautiful lake and roads for race
• Spectator Friendly Event
• Awesome Tri-blend T-Shirt
• Finishers Medal to Celebrate Your Victory!
• Overall and Age Group Awards for Male and Female Individuals
• Awards for Overall Teams
• Post Race Food

Tulsa Half finishers will also receive:

• Custom Seat Shield Seat Cover - great to protect your car seat after racing or workout!
• Guaranteed only if you register by June 3rd

The Tulsa Triathlon is hosted by Tulsa Area Triathletes and produced by RunnersWorld Tulsa Racing.

The Tulsa Triathlon starts and finishes at Birch Lake in Twin Peaks Cove. Birch Lake is 45 miles north of Tulsa and 25 miles south of Bartlesville, Oklahoma. All events include an open-water swim with a beach start. The transition area is located in paved parking lot. The bike course is on paved roads and the run is a combination of pavement and packed gravel. Aid stations are on the course and near the transition area to help keep your hydration and nourishment in check. The finish line includes food, drinks, music, shade and plenty of chances to cheer for the other participants.

In 2016 TAT member Jonathan Cook ventured out on a pre-ride of the Tulsa Half bike course and wrote a great review on Facebook. We have published it here for your convenience: Bike Course Review

The Tulsa Triathlon provides many opportunities for friends and family to watch you perform. Birch Lake has a great swim beach near the start line. The transition area in the parking lot is a great place to watch and cheer participants as they transition from one segment to another. The finish line is not far from the transition area and a great place to see all the competitors in action.

Spectators are asked to stay off the course to reduce traffic. Spectators are not allowed to provide any aid or assistance to participants during the race. Pacers are not allowed on the course at any time. Outside support will result in automatic disqualification. More cowbell is always welcome.

• Be familiar with USAT Triathlon rules and regulations.
• In March 2023, USA Triathlon updated the rules for multi-sport events. These changes strengthen the safety measures for participants and additional flexibility for race directors. One notable change is longer draft zones for all Age Group athletes with more time to complete the pass legally.
• Increasing the draft zone distance from 7 meters to 10 meters for Sprint and Olympic distance races and 12 meters for distances longer than Olympic.
• Athletes have 20 seconds to pass through this zone during Sprint and Olympic distance races; 25 seconds for distances longer than Olympic.
• Pay extra attention to some of the most common rule violations on our warnings page.
• Read our TAT Race Tips and Advice page to be ready for the Tulsa Triathlon.
• Unsportsmanlike-like conduct directed at race officials, USA Triathlon officials, volunteers, spectators or fellow athletes is forbidden and will result in disqualification.
• Shirts and requested sizes are only guaranteed if you register prior to June 3rd due to ordering and production timelines. After the deadline, shirts will be available on a first-come basis.
• This is a USAT sanctioned event. All participants must be a USAT member – annual or one-day. One-day memberships are available with sign-up.
• Only the participant can pick up their packet. Participants must show photo ID and proof of USAT membership.
• No race day packet pickup. If you live more than 40 miles from Tulsa contact the race director to be placed on an exception list.
• If you plan to stay in a nearby hotel consider hotels in Bartlesville, OK. Most are 25-30 minutes from the race location.
• Parking is available in Twin Coves Beach Park near the finish line and transition area. Do not cross any cones or barricades to park since our transition area and course need to be clear of obstructions and hazards.
• Tulsa Triathlon is a Champion Chip timed event. Participants must pick up a timing chip on race day and wear it on your ankle the entire race. It will be removed at the finish line.
• The transition area is for race entrants only. Friends or family are not allowed inside to help participants.
• There is limited space in the transition area so please rack your bike according to our TAT Race Tips and Advice page.
• The transition area will remain closed until the race director announces it is open and participants may retrieve their bike and other equipment.
• The bike and run courses are on open roads with active traffic.
• Spectators are not allowed to provide any supplies, aid or assistance to participants during the race. Participants may be penalized. Only race volunteers are allowed to provide aid or support to participants.
• Pacing a participant by foot, bicycle or vehicle is not allowed and may result in a penalty.
• No Earbuds, headphones or similar devices during the swim, bike or run.
• You must wear your helmet (with chin strap fastened) anytime you are riding your bike – including to/from the transition area before or after the race.
• Participants are responsible for knowing the course.
• If you drop out of the race please return the chip to the finish line. You will incur a $35 replacement fee if the chip is not returned.
• Preliminary race results will be posted at the finish line during the event. Final results will be available after the race and submitted to USAT.
• No transfers and no refunds if you are not able to participate.
• No refunds if the race is canceled for any reason.

Kids Triathlon Tips

• There will be a transition area setup just like the adult events.
• The swim will be along the Twin Coves Beach inside the marked swim area.
• All kids must wear their helmet (with chin strap fastened) anytime they are riding their bike.
• Parents are encouraged to let the kids experience the triathlon sport at their own pace. Experienced volunteers will provide support before and during the race.
• Parents are allowed to help the kids setup their gear in the transition area.
• Parents are not allowed in the transition area during the race. Volunteers will be in the transition area to help the kids as needed.
• All gear must be setup in the transition area by 10:30am. Be sure to remember bib, shoes, bike, helmet, towel, shirt, water bottle.
• There will be a pre-race meeting at 10:30am at the start line on the beach. Ages 5-8 will race first followed by the 9-12 year olds.
• Timing will be tracked by total time to complete all three legs of the triathlon. This is not a chipped timed event.
• Each finisher will receive a Tulsa Tri medal. No age group awards for the Kids Triathlon.
• Use caution when driving and parking as the adult Sprint Triathlon is before the Kids Triathlon and bikers or runners will be on the roads.
• Start times could be delayed based on when the adult Sprint Triathlon participants finish.