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WAITLIST ACTIVE June 6, 2026
Munising, MI
Other Distances: 50K
Field Strength
-
0 Elite (90+)
Total Entrants
34
Registered Runners

Staged in the heart of Michigan's Upper Peninsula, the Rock River Canyon ultramarathon is a 50K journey through one of the state's most remote and pristine wilderness areas. Runners traverse a fast, out-and-back course that balances moderate elevation with 'Zen quality' single-track, providing an immersive experience in the silent, ancient forests south of Munising.

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Field Strength

Field Strength
-%
Rank of 20th
Median Rank
60.0%
90+
0
80-89
2
60-79
5
<60
5
New
22
Elite Runners (90+)
Count
0
-1.4 vs avg
% of Field
0.0%
-1.2% vs avg

About rankings: Stats based on 12 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: 12 with <5 finishes, 10 unranked

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

Registration Analysis

Total Entrants
34
Ranked Runners
12
Field Size Meter
Smallest (51) Largest (410)

Field

Top Men

Rank Score
DO
Duane Oftedahl
17 results
Rice Lake, WI
88.5%
JR
Jason Ruge
5 results
Commerce Twp, MI
60%
SM
Scott Maisel
5 results
Royal Oak, MI
56.1%
BH
Bryan Harris
14 results
Eaton Rapids, MI
52.9%
EP
Ed Peddycord
16 results
Norway, MI
51.5%