Skip to content
WAITLIST ACTIVE March 28, 2026
St Louis, MO
Other Distances: 50K25K25K RUCK
Field Strength
-
1 Elite (90+)
Total Entrants
37
Registered Runners

The Double Chubb is a gritty, scenic ultramarathon held in Eureka, Missouri, that challenges runners with two out-and-back loops along the rugged Chubb Trail. Traversing the scenic bluffs and bottomlands of the Meramec River, the race offers a punishing mix of technical single-track, steep limestone 'steps,' and flat river-side sprints.

View Race Details

Field Strength

Field Strength
-%
Rank of 20th
Median Rank
62.0%
90+
1
80-89
1
60-79
5
<60
3
New
27
Elite Runners (90+)
Count
1
-1.5 vs avg
% of Field
2.7%
+1.3% vs avg

About rankings: Stats based on 10 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: 13 with <5 finishes, 14 unranked

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

Registration Analysis

Total Entrants
37
Ranked Runners
10
Field Size Meter
Smallest (50) Largest (878)

Field

Top Men

Rank Score
MK
Mike Klaus
9 results
St. Louis, MO
90.8%
AB
Andy Bergen
6 results
Cedar Rapids, IA
59.9%
RS
Richard Santiago
17 results
O'Fallon, IL
41.5%