Schedule and packet pickup
Athlete Guide
Check the Athlete Guide for helpful race details! This will be updated throughout the year with more details, especially as we get closer to race day. Updated 07/2/26 MW.
Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler 2027
- Date
- Saturday, June 12, 2027
- Start time
- 6:00 AM start (Detroit)
- Location
- Laingsburg, Michigan
- Entry fee
- From $10 · goes up to $120 on Feb 5, 2027
- Included with entry
- Includes a shirt
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| 50 Mile | 50 Mile | Jun 12, 20276:00 AM | $95$120 after Feb 5, 2027 | – |
| 50K Ruck | 50K | Jun 12, 20276:30 AM | $108$113 after Sep 29, 2026 | – |
| 50K | 50K | Jun 12, 20277:30 AM | $108$113 after Sep 29, 2026 | – |
| Half Marathon | Half Marathon | Jun 12, 20277:30 AM | $78$83 after Sep 29, 2026 | – |
| Half Marathon - Economy Package | Half Marathon | Jun 12, 20277:30 AM | $63$68 after Jan 30, 2027 | – |
| Half Marathon Ruck | Half Marathon | Jun 12, 20277:30 AM | $78$83 after Sep 29, 2026 | – |
| 5 Mile | 8K | Jun 12, 20278:00 AM | $48$53 after Sep 29, 2026 | – |
| 5 Mile - Ecomony Package | 8K | Jun 12, 20278:00 AM | $38$48 after Jan 30, 2027 | – |
| 5 Mile Ruck | 8K | Jun 12, 20278:00 AM | $48$53 after Sep 29, 2026 | – |
| Pacer | – | Jun 12, 20278:00 AM | $10 | – |
| 50 Mile - Virtual RaceVirtual | 50 Mile | Jun 12, 20276:30 AM | $53 | – |
| 50K - Virtual RaceVirtual | 50K | Jun 12, 20277:30 AM | $53 | – |
| Half Marathon - Virtual RaceVirtual | Half Marathon | Jun 12, 20277:30 AM | $53 | – |
| 5 Mile - VirtualVirtual | 8K | Jun 12, 20278:00 AM | $53 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Register on RunSignup
The 50 Mile fee goes up to $120 on Feb 5, 2027.
Race day planning
Entry fee schedule
- 50 Mile: $95 until Feb 4, then $120 until Mar 28, then $135 until Jun 12.
- 50K Ruck and 50K: $108 until Sep 28, then $113 until Dec 29, then $118 until Mar 29, then $123 until Jun 12.
- Half Marathon and Half Marathon Ruck: $78 until Sep 28, then $83 until Dec 29, then $88 until Mar 29, then $93 until Jun 12.
- Half Marathon - Economy Package: $63 until Jan 29, then $68 until Jun 12.
Online registration closes Jun 12, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:58 AM, and the 50 Mile starts at 6:00 AM. The start sits about 810 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
7835 Price Rd, Laingsburg, MI 48848
- Directions to the start
- Course map on Strava
- Course map on Strava
- Course map on Strava
- Course map on Strava
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
2026 results
All results (5 years)Half Marathon
217
finishers
2:37:27
median (12:01 /mi)
1:24:21
winning time
51% / 49%
women / men
5 Mile
152
finishers
57:12
median (11:26 /mi)
33:58
winning time
59% / 41%
women / men
50K
97
finishers
6:48:41
median (13:11 /mi)
4:06:15
winning time
50% / 50%
women / men
Aggregated from official results (Trivium Racing) for Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler. Individual finisher names are not stored here.
How fast do you need to be at Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler?
At the 2026 Half Marathon, the fastest tenth finished in 1:57:59 or better, the top quarter in 2:17:30, and half the field in 2:37:27; the last tenth came in after 3:42:33.
At the 2026 5 Mile, the fastest tenth finished in 44:23 or better, the top quarter in 48:46, and half the field in 57:12; the last tenth came in after 1:26:39.
At the 2026 50K, the fastest tenth finished in 5:20:36 or better, the top quarter in 6:04:34, and half the field in 6:48:41; the last tenth came in after 8:13:02.
| Age | Women | Men |
|---|---|---|
| Under 20 | n/a | 2:31:26 |
| 20-29 | 2:11:09 | 1:50:56 |
| 30-39 | 2:07:52 | 1:46:17 |
| 40-49 | 2:17:49 | 1:42:51 |
| 50-59 | 2:34:08 | 2:11:47 |
| 60-69 | 2:39:32 | 2:19:45 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2026.
Finishers by year
Up 105 percent since 2022.
254
2022
291
2023
427
2024
470
2025
520
2026
All events combined, from official results.
Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler Half Marathon year by year
From 2022 to 2026, the field went from 205 to 217 finishers, and the median time rose from 2:33:00 to 2:37:27.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 217 (+4%) | 2:37:27 | under 1:57:59 | 1:24:21 |
| 2025 | 209 (+4%) | 2:24:45 | under 1:53:00 | 1:31:37 |
| 2024 | 201 (+36%) | 2:26:05 | under 1:52:49 | 1:28:19 |
| 2023 | 148 (-28%) | 2:32:35 | under 1:58:49 | 1:28:44 |
| 2022 | 205 | 2:33:00 | under 1:54:38 | 1:37:11 |
From each year's official results for the Half Marathon; virtual options are left out.
How fast is it?
About average for US trail half marathons
The fastest quarter of the 2026 half marathon field finished under 2:17:30, against 2:16:23 in a typical US trail half marathon, so times here are about average.
- 8K: About average for US trail 8Ks. The fastest quarter of the 2026 8K field finished under 48:46, against 50:16 in a typical US trail 8K, so times here are about average.
- 50K: About average for US trail 50Ks. The fastest quarter of the 2026 50K field finished under 6:04:34, against 6:08:34 in a typical US trail 50K, so times here are about average.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Typical race-day weather
Around June 12 the day usually runs from 56°F at dawn to 77°F in the afternoon, with measurable rain on about 28% of days. Cold snaps dip to 50°F and hot years reach 87°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
From the race's page
What the organizers of Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler cover on their registration page, in brief.
Schedule and packet pickup
Club Perks & Competition
We can only accommodate EIGHT CLUB TENTS at STFU. The first eight clubs to reach 10+ in-person members will receive club race day perks listed below. This is due to the number of tents Trivium utilizes out on the race course for Aid…
Course
5 Mile Course Info
The STFU 5 Mile is a fast, fun, and flowy single-loop course through the scenic trails of Sleepy Hollow State Park. With just 132 feet of elevation gain and nearly all singletrack, it's the perfect mix of runnable and rewarding. The trails…
Course
50 Mile
The STFU 50 Mile is a nearly all-trail, three loop course at Sleepy Hollow State Park plus an added short section. The single track is not very hilly, but if it rains it can get very muddy. Overall this course is a great opportunity for…
Course
50K Course Info
The STFU 50K and 50K Ruck are a nearly all-trail, two loop course at Sleepy Hollow State Park. The single track is not very hilly, but if it rains it can get very muddy. Overall this course is a great opportunity for first timer ultra…
Course
Aid Station Information
Aid Stations locations and options available may be subject to change slightly due to course modifications and availability. All stations will include water and Tailwind. 50 Mile and 50K runners and ruckers can stop at your car after Aid…
Race details
- Where
- 7835 Price Rd, Laingsburg, MI 48848Map
- Course
- Trail
- Start elevation
- About 810 feet
- Included with entry
- Singlet/Tank; T-Shirt
- Distances
- 8K, Half Marathon, 50K, 50 Mile
- Editions
- 2027 (Jun 12, 2027), 2026 (Jun 13, 2026), 2025 (Jun 14, 2025), 2024 (Jun 15, 2024), 2023 (Jun 17, 2023), 2022 (Jun 18, 2022)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler?
- Saturday, June 12, 2027, starting at 6:00 AM.
- How much does it cost?
- Entry starts at $10 before processing fees, and rises to $120 on Feb 5, 2027.
- When does registration close?
- Online registration closes Jun 12, 2027, unless the race fills first.
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- What distances can I run?
- 8K, Half Marathon, 50K, 50 Mile.
- How big is it, and how fast?
- In 2026, 217 runners finished the Half Marathon; the median finish was 2:37:27 and the winner ran 1:24:21.
- Is it a fast course?
- The fastest quarter of the 2026 half marathon field finished under 2:17:30, against 2:16:23 in a typical US trail half marathon, so times here are about average.
- Where does it start?
- 7835 Price Rd, Laingsburg, MI 48848.
- Is there a course map?
- Yes, the organizers publish the route on Strava; the link is under Start location and course.
From the organizers
Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, and 5 Mile – June 12, 2027
Summer Trail Fest Ultra (STFU) is back for its sixth year on Saturday, June 12, 2027, at Sleepy Hollow State Park in Laingsburg, Michigan. This summer trail race is the perfect mix of beginner-friendly and PR-worthy, with smooth, well-marked singletrack and generous cutoffs that make it accessible for both new and experienced trail runners. Whether you’re ready for your first ultra marathon, looking to nail a faster half marathon, or want to test yourself on the 5 mile trail race, STFU delivers a one-of-a-kind Michigan trail running experience.