Race Details

The 22nd Annual Grasslands Trail Run will be held on Saturday, March 20, 2021.

The following information is for the 2020 event. We will update with 2021 information as plans are finalized.

Race Details

All races will start and end at TADRA Point Trailhead. Directions here.

Complete details can also be found in the 2020 Runner Guide.

Race Schedule

Thursday, March 19

Packet Pick up and registration
REI, 1011 E Southlake Blvd, Southlake, TX 76092
4 – 7 p.m.

Friday, March 20

Packet Pick up and registration
Rodeway Inn–Decatur, 1507 Hwy 287 South, Decatur, TX (Same hotel used in past years, formerly the Ramada Inn)
3:00 – 6:30 p.m.

Saturday, March 21

5:30 a.m. Packet pick up and same-day registration opens (if the race is not sold out)
5:45 a.m. 50-Mile Pre-race brief
6:00 a.m. 50-Mile race begins
7:15 a.m. Marathon Pre-race brief
7:30 a.m. Marathon begins (Sunrise 7:32 AM)
8:15 a.m. Half marathon Pre-race brief
8:30 a.m. Half marathon begins

Packet pick up and same day registration will be open until 8:30 a.m. However, we recommend that all participants arrive early to allow time to pick up your packet, race chip, and get ready for your race.

All participants will receive a race bib, race shirt, and everyone’s favorite—a catered post-race meal.

All finishers will earn a finisher’s medal, unique to their race distance.

The top 3 male and female finishers, and the top Master’s finisher (40+), in all three distances will earn prizes.

Trail Information

The Grasslands Trail Run is held in the Lyndon B. Johnson National Grasslands, more than 20,000 acres managed by the U.S. Forest Service and situated north of Fort Worth. The trails loop among rolling hills and through a mixture of pine and oak grove forests, open fields, and livestock.

The race uses a series of trails that start and finish at TADRA Point Trailhead. The half marathon uses the blue trail; the marathon uses the white and blue trails; and 50-mile runners will start with a correction loop, followed by the blue, white, yellow and red trails. The course map shows all loops with aid stations marked.

Aid Stations

This is a cupless race. Please bring your own hydration device to carry and consume fluids on the course. Water and endurance drink will be available at all aid stations along with favorite food items such as bananas, oranges, peanut butter and jelly sandwiches, potato chips, Oreos, fig cookies, soda, Salt Stick and much more.

Drop Bags

Supplies for 50-Mile and Marathon participants can be left in drop bags at the Start/Finish aid station. Remember to pick up your drop bag at the end of the race.

Time Cut Off

50 Mile

  • Participants must leave the TADRA Point – Start/Finish Aid Station (mile 41.1) by 4:30 PM to start their final loop. This means participants should be able to reach mile 41.1 in 10 1/2 hours (15:19 min/mi pace.)
  • Participants must leave the Windmill 2 aid station (mile 44.7) by 5:30 PM.
  • Participants who do not meet these cut-offs will be politely removed from the course to begin enjoying their post-race meal.


  • Participants must reach the Red Ant Pond aid station before it closes at 2:00 PM.
  • Marathon participants should be able to reach this aid station (mile 22.9) within 6 1/2 hours (17:02 min/mi pace.)
  • Half-Marathon participants should be able to reach this aid station (mile 10.1) within 5 1/2 hours (32:40 min/mi pace.)


Pacers are only allowed with 50-Mile participants for the final loop. No exceptions. Violation of this policy is grounds for Disqualification.

Runners with pacers cannot earn top place finish. Check the standings before leaving on your final loop.

Registration and Refund Policy

We understand that things come up. If you can no longer run the race, if you let us know more than one month in advance, you will receive 100% race credit for another Blaze Trails Running event. If you let us know between one month and two weeks prior to race day, you will receive 50% race credit towards another Blaze Trails Running event. We will not allow any refunds or transfers less than two weeks before race day. No exceptions.

We allow changes in race distance as long as we still have openings in that distance. If you are moving to a longer distance, you will need to pay the difference. If you are moving to a shorter distance, you will not get that difference back.

Bib transfers to another runner are allowed up until the two weeks prior to the race only if the race has not sold out. If you are interested in transferring your bib to another person, please contact us immediately. It is very important for the safety of all runners that we have the correct contact and medical information. If the shirt order has already been placed, the person you transfer to agrees to accept the shirt size that you ordered. A $15 administration fee (plus transaction fee) will be charged to the person who is accepting the bib transfer. We do not allow transfers if the event has sold out and have a wait list. In that case, we will follow the posted refund policy and allow the next person on the wait list to register. We require transfers to be completed no later than two weeks prior to the race. This allows us to keep our focus on producing the event and other important race details during the race week. If you contact us in the last two weeks to ask for a transfer, we will not reply and the transfer is not allowed. No exceptions.

Refund and/or transfer requests must be made in writing by sending an email to info@blazetrails.com. Refunds are only processed as credit to a future event.

I further understand that I am not entitled to a refund if the race director and/or race officials are forced to cancel the race due to any participant safety issue on the course that is out of the race organizer’s control. This may include, but is not limited to flooding, lightning or any other weather condition that makes the course unsafe for participants.

Course Records

50-Mile: John Finn, 6:32:57, 2017; Shandra Moore, 7:53:13, 2017

Marathon: Todd Reynolds, 3:01:33, 2006; Melanie Rabb, 3:32:47, 2017

Half Marathon: Joshua Pauley, 1:21:48, 2013; Sarah Reardon, 1:30:29, 2004

Thank you

The Grasslands Trail Run was founded in 1999 by Suzi Cope, the first female to complete the Grand Slam of Ultrarunning. It has continued year after year because of the support of both runners and volunteers. Chris Barnwell began directing the race in 2015 as a volunteer race director through the North Texas Trail Runners. In 2016, Chris acquired both Grasslands and the Rockledge Rumble Trail Run with the goal to continue these Texas traditions for many years to come.

Thank you to all runners and volunteers for your continued support to this event.