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Allen Kao
WAITLIST ACTIVE March 21, 2026
Grasslands Trail Run

50 Miler

Alvord, TX
Other Distances: 100 MileMarathon1/2 Marathon15K
Field Strength
67.1%
0 Elite (90+)
Total Entrants
116
Registered Runners

Since 1999, the Grasslands Trail Run has challenged athletes within the 20,000-acre Lyndon B. Johnson National Grasslands of North Texas. This scenic event features a fast, runnable course through rolling hills and post oak savannas, offering distances ranging from a 15K to a premier 100-mile ultramarathon.

View Race Details

Field Strength

Field Strength
67.1%
Rank of 20th
-2.8%
Median Rank
66.5%
90+
0
80-89
4
60-79
27
<60
14
New
71
Elite Runners (90+)
Count
0
-2.5 vs avg
% of Field
0.0%
-1.4% vs avg

About rankings: Stats based on 45 runners with 5+ UltraSignup finishes.

Field Strength is the UltraSignup rank of the 20th strongest qualified runner—a higher value indicates greater depth of talent.

Excluded: 41 with <5 finishes, 30 unranked

90+ = Elite • 80-89 = Strong • 60-79 = Experienced • <60 = Developing

Registration Analysis

Total Entrants
116
Ranked Runners
45
Field Size Meter
Smallest (50) Largest (878)

Field

Top Men

Rank Score
NS
Nick Stowers
16 results
Ada, OK
86.1%
TB
Thomas Brossard
7 results
Lavon, TX
82.5%
PS
Philip Smith
9 results
Bridgeport, TX
78.2%
RC
Robert Clark
10 results
Arlington, TX
77.7%
ML
Morten Lileng
17 results
Frisco, TX
73.3%