
The Longest Day (100k - 50k - 26.2 - 13.1) is a running, trail running, and ultra race on June 12, 2027 in Greenville, SC, with entry fees from $5 to $100.
| Sat, Jun 12 2027 | 6:30 AM start | Lakewood Nature Preserve Greenville, SC |
A two-mile grass loop through 120 acres of forest and open field, run under a cutoff that gets one minute shorter every single lap. Forty-five minutes for the first. Fifteen for the thirty-first. Seven laps is a half marathon, fourteen is a marathon, sixteen is a 50K, twenty-five is fifty miles, and thirty-one is 100K. The clock decides when you are done, not you.
Runner FeedbackSaturday, June 12, 2027 at Lakewood Nature Preserve, 220 Lakewood Drive, Greenville, SC 29607. Get directions.
| Fri 5:00 PM | Camp setup begins Friday evening tent setup begins at 5:00 PM, with overnight camping available. |
| 5:30 AM | Packet pickup opens Opens one hour before race start at The Barn, and can be picked up anytime throughout the race since there is ample time between laps. All bibs are picked up on site, by you. |
| 6:30 AM | Start The Longest Day — 13.1 (7 laps), 26.2 (14 laps), 50K (16 laps), 50 Mile (25 laps), and 100K (31 laps) on a 2-mile loop. |
| On course | Two-mile grass loop A two-mile loop on grass trails with rolling hills, open fields, and sections of shade, through 120 acres of forest featuring red cedar and maple. |
| Finish | Ring the cowbell Miss a cutoff and it is over: ring the cowbell, turn in your bib, and go cheer for whoever is still out there. |
| 10:00 PM | Time limit The cutoff tightens every lap: 45 minutes for Lap 1, 44 for Lap 2, 43 for Lap 3, and one minute less each time down to 15 minutes for Lap 31. Miss a cutoff and your race is complete — ring the cowbell, turn in your bib, and cheer on the remaining runners. |
| After | Results and photos Live results post to the RunSignUp results page as each runner finishes. Free event photos are usually up within 48–72 hours on our Facebook page. |
The format is what makes this race. Early laps feel generous — 45 minutes for two miles is a walk in the park, and it very nearly is one. But the window closes a minute at a time, and somewhere in the afternoon the math stops being theoretical and starts being the only thing you can think about. Miss a cutoff and it is over: ring the cowbell, turn in your bib, and go cheer for whoever is still out there.
The course itself is grass trails with rolling hills, open fields, and sections of shade, winding among red cedar and maple through the preserve. You may see white-tailed deer, a box turtle, or a fox. Note that there is NO WATER OR POWER ON SITE, so plan your crew setup accordingly. Bring a tent, a camp chair, and your support crew — Friday evening setup begins at 5:00 PM and overnight camping is available.
A two-mile loop on grass trails with rolling hills, open fields, and sections of shade, through 120 acres of forest featuring red cedar and maple. Keep an eye out for white-tailed deer, box turtles, and foxes. Important: there is no water or power on site, so bring what you and your crew will need for the day.
Every lap allows one minute less than the one before it — 45 minutes for the first, 15 for the thirty-first. The pace column is what that cutoff works out to per mile on the two-mile loop. Miss a cutoff and your race is complete: ring the cowbell, turn in your bib, and cheer on whoever is still out there.
| Lap | Cutoff | Pace | Starts | |
|---|---|---|---|---|
| Lap 1 | 45:00 | 22:30 | 6:30 AM | |
| Lap 2 | 44:00 | 22:00 | 7:15 AM | |
| Lap 3 | 43:00 | 21:30 | 7:59 AM | |
| Lap 4 | 42:00 | 21:00 | 8:42 AM | |
| Lap 5 | 41:00 | 20:30 | 9:24 AM | |
| Lap 6 | 40:00 | 20:00 | 10:05 AM | |
| Lap 7 | 39:00 | 19:30 | 10:45 AM | Half marathon finishes here |
| Lap 8 | 38:00 | 19:00 | 11:24 AM | |
| Lap 9 | 37:00 | 18:30 | 12:02 PM | |
| Lap 10 | 36:00 | 18:00 | 12:39 PM | |
| Lap 11 | 35:00 | 17:30 | 1:15 PM | |
| Lap 12 | 34:00 | 17:00 | 1:50 PM | |
| Lap 13 | 33:00 | 16:30 | 2:24 PM | |
| Lap 14 | 32:00 | 16:00 | 2:57 PM | Marathon finishes here |
| Lap 15 | 31:00 | 15:30 | 3:29 PM | |
| Lap 16 | 30:00 | 15:00 | 4:00 PM | 50K finishes here |
| Lap 17 | 29:00 | 14:30 | 4:30 PM | |
| Lap 18 | 28:00 | 14:00 | 4:59 PM | |
| Lap 19 | 27:00 | 13:30 | 5:27 PM | |
| Lap 20 | 26:00 | 13:00 | 5:54 PM | |
| Lap 21 | 25:00 | 12:30 | 6:20 PM | |
| Lap 22 | 24:00 | 12:00 | 6:45 PM | |
| Lap 23 | 23:00 | 11:30 | 7:09 PM | |
| Lap 24 | 22:00 | 11:00 | 7:32 PM | |
| Lap 25 | 21:00 | 10:30 | 7:54 PM | 50 Mile finishes here |
| Lap 26 | 20:00 | 10:00 | 8:15 PM | |
| Lap 27 | 19:00 | 9:30 | 8:35 PM | |
| Lap 28 | 18:00 | 9:00 | 8:54 PM | |
| Lap 29 | 17:00 | 8:30 | 9:12 PM | |
| Lap 30 | 16:00 | 8:00 | 9:29 PM | |
| Lap 31 | 15:00 | 7:30 | 9:45 PM | 100K finishes here |
Right on site at the address listed, with opportunities to park along the course, or, if you are running late, in the lot adjacent to the start/finish line less than 100 meters away. There is a $5 fee paid during registration that covers this, so nothing is owed on race day.
A simple but effective ultra-running aid station at the barn, which is also the start/finish, reached every two-mile lap. Participants are welcome to bring and share their favorite aid station snacks.
Wildly Charged is our official hydration sponsor — look for the orange 5-gallon jugs at aid stations.
Cup-less event — please bring your own hydration vessel.| ✓ | Iced Towel at the Finish In June, in South Carolina, this is not a small thing. |
| ✓ | Custom Race Bib Your badge of the journey. |
| ✓ | Chip Timing & Live Results Track your effort, splits included. |
| ✓ | Race Branded Finisher Medal To commemorate the triumph. |
| ✓ | Custom Race Tattoo Wear the moment proudly. |
| ✓ | Event-Themed Giveaways A little extra swag for finishing strong. |
| ✓ | Race Stickers Keep the memory riding shotgun on your bottle, cooler, or laptop. |
| ✓ | Camp On Site Friday evening tent setup begins at 5:00 PM, with overnight camping available. |
| ✓ | Post Race Vibes and Media Coverage Complimentary professional race photos capture the grit and the glory — hang around at the finish line and celebrate. |
From past races. See all race photos
This is an elimination format, so the win is decided by survival rather than by a finishing kick. If multiple runners are still in it at Lap 31, the first across the line wins. Every finisher who covers at least the 10K minimum earns a medal.
The 1st, 2nd, and 3rd place finishers in each of 15 age categories will earn an age group medal — a custom piece to add to your finisher's lanyard at the end of the event.
This race counts toward season-long age group recognition in this series:
Upstate Ultra Series Age Group Categories| 0–9 10–12 13–16 17–19 20–29 30–34 35–39 40–44 | 45–49 50–54 55–59 60–64 65–69 70–79 80+ |
| This race supports Children's Cancer Partners of the Carolinas Pays for travel, lodging and meals so Carolina families can get their child to cancer treatment. They host their own race too: Upstate Strut. Visit Children's Cancer Partners of the CarolinasUpstate StrutDonate |
Every Upstate Race Series event is part of the Upstate Giving Series, which connects our 30 races with 30 nonprofit organizations serving communities across the Upstate. Your registration and any donation you add at checkout go to work close to home — you are not just running a race, you are funding the work of a neighbor. Upstate Giving Series.
The Upstate Running Club welcomes all local and regional running clubs to our events — the more the merrier. Calling all running clubs and social run groups: Upstate Race Series welcomes crews of all kinds to join the fun. Whether your squad is full of weekend warriors, sunrise chasers, or runners motivated by the promise of a cold drink at the finish, we've got an event for you.
Sign up, share with friends and local running clubs, and cash in on race discounts and refunds when your team, run club, or band of misfits hits 5 runners or more.
Everything about your entry lives in your RunSignUp profile. Sign in, find this race under your upcoming events, and make the change yourself — there is no need to email us first. From there you can:
| ✓ | Transfer your entry to another runner |
| ✓ | Switch to a different distance at this race |
| ✓ | Transfer your entry to a different Upstate Race Series event |
| ✓ | Update your personal details — name, address, emergency contact, shirt size |
| ✓ | Manage add-ons, store items, and apparel purchases |
Follow along, gear up, and keep up with everything Upstate Race Series
This race Register Directions Race groups Results Race photos Race apparel Manage my registration Series & giving Upstate Ultra Series Upstate Giving Series Children's Cancer Partners of the Carolinas Upstate Strut Donate Upstate Race Series UpstateRaceSeries.com Info@UpstateRaceSeries.com Instagram @upstateraceseries Facebook: Upstate Event Management Apparel storeIt's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
83°
Typical Low
64°
Chance of Rain
36%
Based on US Climate Normals data from Greenville, 4 mi from the venue.
Population
71,755
as of 2023
City Elevation
927 ft
Nearest Airport
GSP
Greenville-Spartanburg International Airport · 11 mi
Major Hub
CLT
Charlotte Douglas International Airport · 87 mi
Time Zone
Eastern Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Every finish line starts with a single decision. Claim your spot at The Longest Day (100k - 50k - 26.2 - 13.1), put it on the calendar, and turn “someday” into a start date.
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This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
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The Longest Day (100k - 50k - 26.2 - 13.1)
Jun 12, 2027