Broken Rock Trail Runs
Oct 10Dodgeville, WI50K, 20 mi +1
122 mi from Meyerhoff's Mayhem, similar trail technicality to Meyerhoff's Mayhem, registration open
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planMeyerhoff's Mayhem is an endurance event where participants complete 4 miles every 4 hours for 48 hours, with an optional 2-mile add-on after the last leg.
Registration closes
Oct 15, 2026
Race day
Oct 16, 2026
All distances
48-hour Team Relay (2-4 people)
$85
48-hour Individual
Veterans
$75
48-hour Team Relay (2-4 people)
Veterans
$75
Registration openings and major changes, like a new date or a cancellation.
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Oct 10Dodgeville, WI50K, 20 mi +1
122 mi from Meyerhoff's Mayhem, similar trail technicality to Meyerhoff's Mayhem, registration open
Oct 10Johnston, IA5K
89 mi from Meyerhoff's Mayhem, 1 week before Meyerhoff's Mayhem, registration open
Sep 4, 2027Waverly, IA8 hr, 4 hr
14 mi from Meyerhoff's Mayhem, similar trail technicality to Meyerhoff's Mayhem
Oct 24La Crosse, WI50K, 25K +2
105 mi from Meyerhoff's Mayhem, 1 week after Meyerhoff's Mayhem, registration open
Straight-line distance
Oct 10Johnston, IA5K
Oct 16Dubuque, IA100 mi, 100K
Oct 17Danville, IA25K, 12K +1
Oct 24Council Bluffs, IA50K, Half Marathon +1
Nov 7Shuibert, IA32K, 12 mi +2
Nov 7Coon Rapids, IA30K, Half Marathon +2
Nov 7Dubuque, IA50K, 25K
Nov 13Delmar, IABackyard Ultra, 4 mi
Nov 14Central City, IA6 hr
Nov 21Granger, IA100 mi, 50 mi +2
Dec 5Honey Creek, IA100 mi, 101K +2
Mar 27, 2027Long Grove, IA24 hr
Sep 4, 2027Waverly, IA8 hr, 4 hr
Jun 3, 2027Marshalltown, IA
Sep 11, 2027Palo, IA45K, 30K +1
Jun 5, 2027Decorah, IA50K, 25K +2
Aug 28, 2027Bussey, IABackyard Ultra
Nov 8Rochester, MNHalf Marathon, 10K +2
Oct 10Dodgeville, WI50K, 20 mi +1
Oct 17Millston, WI85K, 50K +2
Oct 18Mazomanie, WI16K, 8K
Oct 24La Crosse, WI50K, 25K +2
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Meyerhoff's Mayhem?
Claim this race to manage registration, volunteers, and race day.