September 10, 2022

Murrell Park, Flower Mound, Texas


This adventure gives racers the opportunity to rock it on one of the most popular trails in the DFW Metroplex, Northshore Trail (Lake Grapevine). The start takes place at Murrell Park, where swimmers will head out and complete a loop around a cove on Lake Grapevine.  After exiting the water, racers will transition to the bike and enter the single-track trail. Traveling in a counter-clockwise direction, riders will head east to do loops 2, 3, and 4, followed by the west section of the trail to complete loops 1 and 5.  The mountain bike portion of the race is fast, with a few technical sections to challenge you. Finally racers will transition into their sneakers to rock the final leg of this adventure.  Heading east, racers will run counter-clockwise through fast, flowy single-track before raising their hands high through the finish line.


If you sign up as a “trio” then you each do a different leg of the race. You exchange (tag) in the transition area. The first teammate will swim, the second will bike, and the third will run.

We do not have age groups for the relay teams. It is just one division. You can combine any combination of ages or gender you like.

The “duo” teams mean that one teammate does two of the legs and the other does the third leg. You pick the order and the legs that each does. (ie. Teammate 1 could do the swim, teammate 2 the bike, then teammate 1 the

Aid Stations

We try to be be eco-friendly at all of our races. To reduce trail litter and overall waste, we do not supply cups at the aid stations. There will be 1 aid station on the bike and 1 on the run, but you are responsible for providing your own drinking vessel.





Solo $90
Two-person team $60 (per person)
Three-person team $50 (per person)

After July 30

Solo $100
Two-person team $67.5 (per person)
Three-person team $55 (per person)


Solo $110
Two-person team $77.5 (per person)
Three-person team $65 (per person)

Racers 18 years old and under get a $10 discount!



Recognition of Your Awesomeness

Podium Categories

Male & Female – 3 deep
Male & Female – 3 Deep

Age Groups: – 3 Deep
Males: 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75+
Females: 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75+

What you get with Registration

We’ve partnered up with ReGeared to bring you some of the coolest custom awards anywhere. All participants will receive race swag at packet pickup, finisher medals, a trucker hat (for early bird registrants!!!), a meal ticket, and an opportunity to win gear from our sponsors in our post-race raffle.

Tentative Trail Maps


The transition area for the following people only: athletes with race numbers, race officials, and race management. No others will be allowed in transition at any time. NO EXCEPTIONS!

  • Participants will be allowed to start removing their bikes from transition AFTER ALL PARTICIPANTS have FINISHED the bike portion of the event.
  • Please be courteous and pay attention while in the transition area, especially when removing your belongings.
  • Anyone removing their bike prior to authorization or without permission from the Race Director will be DISQUALIFIED.
  • If you have special circumstances, such as work commitments or something of this nature, come ask us and we will work with you.


  • Swim wave start times will be based on participation. All decisions will be made race week.
  • Starting at the out-of-service boat ramp, racers will swim clockwise for a 1,200 meter loop.  Swimmers will keep buoys on their right shoulders.
  • After exiting the water, racers will have a short run up the boat ramp to the transition area.
  • Swim caps are REQUIRED and will be provided at Packet Pickup
  • If you need assistance, wave your arms or yell. We will have multiple in-water kayaks that will render assistance. You may hold onto kayaks but you cannot use them to advance.

BIKE — 13.4 Miles

  • The mountain bike section takes racers through 1 lap of the most popular mountain bike singletrack in the DFW metroplex. This singletrack is fast and flowy with short, punchy hills, a few rock garden sections, creek crossings, and some sand to keep you on the edge of your seat.
  • This course is fun for ALL ability levels!
  • Racers will ride COUNTER-CLOCKWISE, following BLUE arrows and WHITE tape.
  • Aid Station(s), stocked with Gatorade and water, are located at the Transition Bike Out and at 6.5 miles. Please carry a hydration pack or water bottles for this leg of the race.

RUN — 5.6 Miles  (1 lap)

All on fast & flowy singletrack!

  • Runners will follow RED arrows and WHITE tape.
  • Aid Station(s), stocked with Gatorade and water, are located at the Transition Run Out and the turnaround point at mile 2.75


Saturday, September 10

  • Guard Gate Opens 6:00am
  • Packet Pickup (Murrell Park) – 6:15am – 7:30am – follow signs after entering at the guard gate
  • Transition opens – 6:10am
  • Swim warm-up – 7:30am
  • Transition closes – 7:40am
  • Pre-race brief (Race Start – Boat ramp) – 7:45am
  • Race starts – 8:00am
  • Race awards – 11:30am (tentative)



Murrell Park, Flower Mound, Texas

Murrell Park is located on the north side of Lake Grapevine and is operated by the Army Corps of Engineers. This park sits on the bluffs of the north shore overlooking the main lake.

Day use is Free at Murrell Park. White Chalk Rd area start/finish/transition only open on race day.

Camping is available for $10/night. However, reservations are required. Reserve early at Reserve America



Extra Bits

*Right to Cancel or Reschedule – Terra Firma Racing LLC reserves the right in the event of inclement weather, emergency, or natural disaster to cancel the race or move to a later time that day or alternate date within the year (if available). In the event of a CANCELLATION with no ability to reschedule, there will be NO REFUND OF ENTRY FEES.  Each athlete must accept any such risk for their entry paid.