Saturday, Mar 19, 2022

Grasslands Trail Run

LBJ National Grasslands

Alvord, TX 50 Miler, Marathon - Virtual, 1/2 Marathon

Registration Opens Thu. Oct 28, 2021 @ 12:00 AM CT

2021 Race Information

Please note that much of the race content below and on our website was created prior to the spread of COVID-19. Since it is anticipated that wide availability of vaccines for COVID-19 will not be available until spring at the earliest, we are required to plan the race to comply with current guidelines to mitigate the spread of COVID-19.

While the state of Texas has announced some changes in COVID restrictions, the LBJ National Grasslands is FEDERAL land. Our permit was approved with additional steps to social distance and the use of masks in high traffic areas where you cannot social distance.

The LBJ National Grasslands is owned by the United States Government and managed by the USDA Forest Service. The Mask Requirements for this year's race were enacted in accordance with federal policy. For more information, see the "Mask Guidance" section on the USDA Coronavirus website.

We realize that Governor Abbott and the State of Texas has rescinded the statewide mandate. However, the federal government has not. Think of this as if you were entering one of the numerous businesses that are still requiring customers to wear masks.

Thank you for your cooperation in this matter.

Race Description

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.

Race Schedule

For the 2021 race please refer to the Race Details section of our website here.

We will have packet pick up on Thursday and Friday evening. We will update info as the date gets closer. Registered participants will get an email with their race start time.

Race morning (Previous year's schedule, for reference only):
5:30 a.m. Packet pick up (There is no same-day registration this year)
5:45 a.m. 50-Mile Pre-race brief
6:00 a.m. 50-Mile race begins
6:45 a.m. Marathon Pre-race brief
7:30 a.m. Marathon begins
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.

Race Swag and Awards

All participants will receive a short-sleeved race shirt. People love our shirts--they are soft, tri-blend shirts that are super comfortable.

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

The top 3 male and female finishers, and the top male and female Master’s finishers (40+), in all three distances will earn prizes. Each year, we try to find something that you'll really use. Past awards have included gear bags, seat towels, insulated engraved cups, coolers, etc.

One of the best parts of the Grasslands Trail Run is the race community.

Virtual Option

To be eligible for a finisher award, you must record and submit proof of your run by 4/7/2021. A reminder will be sent via UltraSignup.

Please make sure the address in your UltraSignup account is correct. Please note, that while we will record results, we do not provide top finisher awards for virtual races.

Other Race Details

For the 2021 race please refer to the Race Details section of our website here.

Subject to change for 2021 to comply with COVID-19 precautions.


Please bring your own hydration device to carry and consume fluids on the course. Water will be available at all aid stations along with favorite food items such as bananas, oranges, potato chips, Oreos, fig cookies, soda, Salt Stick and 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. Runners with pacers cannot earn top place finish.

Refund Policy

Runners can get full race credit one month prior to the event. They can earn 50% race credit between one month and two weeks prior. In the final two weeks, there are no refunds/race credit/ or transfers allowed. No exceptions.

Local time: 3:36 AM


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