Woldumar Trail Run
Nov 1Lansing, MI5K
14 mi from Headless Horseman BYU, similar trail technicality to Headless Horseman BYU, registration open
Listed from RunSignUp. Checked Oct 22, 2026.
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 planCome on out and join us for the newest Michigan Trail Experience race. Experience a beautiful 4.167 mile loop through Sleepy Hollow State Park. The park contains over 2,600 acres including a river winding its way through the woods. The course will take you through prairie grass fields, hardwood forest, and stands of Pine trees. This race is a 12hr Back Yard Ultra, last man standing rules, with an option to do the single lap. Elevation gain 151ft
The single lap option will start at 9:00am. This race will be chip timed, with live results. This will be one loop around the BYU course.
The 12hr option will start at 9:00am. All runners will start the loop at the top of the hour and must complete the lap within the hour. Top of the next hour runners start next lap. If a runner doesn't report and start at the top of the hour the runner is out. If you complete the 12hrs you will have done 50miles. A headlamp is required for the last couple of laps sunset is 6:21pm.
Course link: https://www.strava.com/routes/3239974863748599382
Single Loop Option
Start Time: 9 AM Single Loop They will start with the 12 Hr runners
Entry Fee: $35 until Oct 23th $40 from Oct 24th through Oct 31st.
Entry Fee 18 and under: $27 until Oct 23th $35 from Oct 24th to Oct 3 1st
Packet Pickup race day morning starting at 7:00 am
Race Swag!: All entries will receive a T-shirt and finisher patch
Results: Your accurate chip time and current overall and age group place will be texted to your phone and live on this site.
Awards: Overall finishers male and female will receive a $25 Playmakers gift card. First places in each age group will receive a $10 Playmakers gift card. Age groups for women and men are the following: 15 and under, 16-24, 25-34, 35-44, 45-54, 55-64, 65-74, 75- and over
12 Hr Back Yard Ultra
Start Time: 9 AM
Entry Fee: $65 until Oct 24th $70 from Oct 25th through Oct 31st
Be sure to preregister. There is no race day registration.
Packet Pickup race day morning starting at 7:00 am
Race Swag!: All entries will receive a T-shirt and patch
Result: This will be chip timed with each lap being recorded.
Awards: Over all winner Headless Horseman trophy $25 Playmakers gift card. Other finishers will receive a smaller Headless Horseman
Overall winner will be last one standing or if multiple runners on last lap fastest loop is winner.
There will not be aid station on the course. One aid station will be near the start/finish with snacks and drinks. More updates to come on that.
More updates will come about the 12 hr. Any questions please email us at michigantrailexperience@gmail.com
Registration opens
Jun 10, 2026
Tier 1 ends
Oct 23, 2026
Registration closes
Oct 31, 2026
Race day
Oct 31, 2026
Tier 2 ends
Oct 31, 2026
Headless Horseman 12Hr Back Yard Ultra
Tier 1, then $70 from Oct 24, 2026
$65
Headless Horseman Single Loop
Tier 1, then $40 from Oct 24, 2026
$35
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.
Nov 1Lansing, MI5K
14 mi from Headless Horseman BYU, similar trail technicality to Headless Horseman BYU, registration open
Nov 1Howell, MI3.2 mi
28 mi from Headless Horseman BYU, similar trail technicality to Headless Horseman BYU, registration open
Oct 24Sanford, MI5K
56 mi from Headless Horseman BYU, similar trail technicality to Headless Horseman BYU, registration open
Oct 24Grand Rapids, MI5K
67 mi from Headless Horseman BYU, similar trail technicality to Headless Horseman BYU, registration open
Straight-line distance
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Oct 24Thompsonville, MI6 mi
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Nov 1Lake, MI2 mi, 1 mi
Nov 1Howell, MI3.2 mi
Nov 1Lansing, MI5K
Nov 7Houghton, MI50K, 25K
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Jan 16, 2027Holly, MI8 hr, 10K +2
May 22, 2027Clarkston, MIBackyard Ultra, 3 hr
Jun 12, 2027Grass Lake, MI100 mi, 50 mi
Jul 17, 2027Holly, MIBackyard Ultra, 3 hr
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Oct 31Tiffin, OH5K, 1.24 mi +1
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