REGISTRATION OPEN June 6, 2026
Munising, MI
Field Strength
59
0 Elite (90+)
Total Entrants
26
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.
Field Analysis
27K
Field Strength
Avg Rank
59.4
Median
51.7
90+
0
80-89
0
60-79
4
<60
4
New
18
About rankings: Stats based on 8 runners with 5+ finishes (UltraSignup requirement for stable rankings).
Excluded: 11 with <5 finishes, 7 unranked
90+ = Elite • 80-89 = Strong • 60-79 = Experienced • <60 = Developing
Total Entrants
26
Ranked Runners
8
Field
Top Men
Rank ScoreCD
Chris
Douglas
2 results
Grand Blanc, MI
72.9%
ES
Eric
Sturos
1 results
Marquette, MI
66.1%
SM
Scott
Maisel
4 results
Royal Oak, MI
53.3%
BH
Bryan
Harris
13 results
Eaton Rapids, MI
51.7%
EP
Ed
Peddycord
16 results
Norway, MI
51.5%
CG
Charles
Garnett
6 results
Farmington Hills, MI
47.5%
NS
Nick
Shue
4 results
Marquette, MI
44%
GP
Gary
Pageau
0 results
Grand Blanc, MI
0%
AW
Alex
Whipple
0 results
Cadillac, MI
0%
Top Women
Rank ScoreEC
Emily
Carter (Heuser)
54 results
Ann Arbor, MI
76.6%
LM
Liz
Meeks
1 results
Pellston, MI
76.1%
GG
Grace
Garnett
2 results
Farmington Hills, MI
75.1%
EV
Ellen
Vines
1 results
Levering, MI
70.5%
EF
Erica
Fraley
7 results
Flagstaff, AZ
70.2%
JS
Jessica
Storrison-Carmean
17 results
Negaunee, MI
66.4%
RC
Rhonda
Carey
3 results
Iron Mountain, MI
64.4%
NP
Nikki
Peddycord
17 results
Norway, MI
61.7%
AL
Amy
Loukus
3 results
Calumet, MI
51.9%
MS
Martha
Shue
5 results
Marquette, MI
49.8%
JI
Jennifer
Inhoff
1 results
Greenville, WI
49%
PW
Patricia
Wiley
1 results
Prudenville, MI
48.3%
CG
Caitlin
Gibbons
0 results
Houghton Lake, MI
0%
ML
Maria
Laitan
0 results
Ann Arbor, MI
0%
HM
Heidi
Morse
0 results
Ann Arbor, MI
0%
SP
Sadie
Peddycord
0 results
Norway, MI
0%
AW
Anna
Whipple
0 results
McBain, MI
0%
Top Men
Rank ScoreCD
Chris
Douglas
2 results
Grand Blanc, MI
72.9%
ES
Eric
Sturos
1 results
Marquette, MI
66.1%
SM
Scott
Maisel
4 results
Royal Oak, MI
53.3%
BH
Bryan
Harris
13 results
Eaton Rapids, MI
51.7%
EP
Ed
Peddycord
16 results
Norway, MI
51.5%
CG
Charles
Garnett
6 results
Farmington Hills, MI
47.5%
NS
Nick
Shue
4 results
Marquette, MI
44%
GP
Gary
Pageau
0 results
Grand Blanc, MI
0%
AW
Alex
Whipple
0 results
Cadillac, MI
0%
Top Women
Rank ScoreEC
Emily
Carter (Heuser)
54 results
Ann Arbor, MI
76.6%
LM
Liz
Meeks
1 results
Pellston, MI
76.1%
GG
Grace
Garnett
2 results
Farmington Hills, MI
75.1%
EV
Ellen
Vines
1 results
Levering, MI
70.5%
EF
Erica
Fraley
7 results
Flagstaff, AZ
70.2%
JS
Jessica
Storrison-Carmean
17 results
Negaunee, MI
66.4%
RC
Rhonda
Carey
3 results
Iron Mountain, MI
64.4%
NP
Nikki
Peddycord
17 results
Norway, MI
61.7%
AL
Amy
Loukus
3 results
Calumet, MI
51.9%
MS
Martha
Shue
5 results
Marquette, MI
49.8%
JI
Jennifer
Inhoff
1 results
Greenville, WI
49%
PW
Patricia
Wiley
1 results
Prudenville, MI
48.3%
CG
Caitlin
Gibbons
0 results
Houghton Lake, MI
0%
ML
Maria
Laitan
0 results
Ann Arbor, MI
0%
HM
Heidi
Morse
0 results
Ann Arbor, MI
0%
SP
Sadie
Peddycord
0 results
Norway, MI
0%
AW
Anna
Whipple
0 results
McBain, MI
0%