How to Pick a First 100 Miler, or Your First in Years: What to Check First¶
Look at three things before the course photos: the cutoff at each aid station, how much climbing there is, and whether your crew can reach you. A generous cutoff and a course you can train for at home make a first hundred, or your first one back, more about finishing than about the clock.
People search for the best 100 mile races for beginners, and this is the answer I can stand behind: the best one depends on where you live, what you train on, and who is coming with you. So this post shows how to read a race. It is for the runner picking a first hundred, the runner picking a sixth, and the runner picking one again after years away.
What makes a 100 miler a good pick?¶
Three checks, in this order.
1. The cutoffs. The overall limit is on every race page. The cutoffs along the way matter more, because they are the ones you meet at mile 45 in the dark. Divide the limit by the distance and you get the pace the whole day asks for, stops included:
| Time limit | Pace over 100 miles |
|---|---|
| 30 hours | 18:00 per mile |
| 32 hours | 19:12 per mile |
| 36 hours | 21:36 per mile |
That pace includes every sit-down, every walk up a hill and every minute at an aid station. Most hundreds give between 30 and 36 hours, per how long a 100 mile race takes. A race that checks you early and often is stricter than one with a single mid-race gate, even at the same overall limit.
2. The climbing. Gain is one number, and it does not tell you where the climbs fall or how high you are. It still tells you something. Compare it with what you can train for where you live. If the longest hill near you is a 300-foot overpass, a course with 14,000 feet of gain asks you to build that somewhere else. The 100 mile races with the most elevation gain post is the other end of the scale.
3. Your crew. Some races let crew meet you at almost every station. Some let them in at one place all day. Some limit who can park where, by bib number. Which of those you want depends on who is coming and how long they can stay awake.
Two more things are worth a minute. Does the race allow a pacer, and from where? And does it fill up? Some hundreds sell out the moment registration opens, so find the entry method before you fall for the course.
Three races, read against those three checks¶
These are three real hundreds with different shapes. I picked them to show the checks. Every number below comes from the race's own page, opened in November 2026, so look up your year before you plan around one. Rules change.
Umstead 100: one park, many laps¶
The Umstead 100 starts and finishes at Camp Lapihio. The race information page gives the start as 6:30 am Saturday and the end as 12:30 pm Sunday: 30 hours.
- Cutoffs: one soft cutoff, 26 hours (8:30 am Sunday) at the 87.5-mile point, the start of the last lap. Past it, a runner is "not guaranteed support, depending on their pace."
- Fluid: a full-service aid station at the start and finish, another at mile 7.15 of each lap, and two water points. Runners never have more than 3.8 miles between fluid stops.
- Your crew and pacers: pacers are allowed only after 50 miles or 6:30 pm Saturday, whichever comes first, one at a time while the park is open. The page says plainly that a pacer is not guaranteed.
- Entry: the race home page says the 2027 race (April 3 and 4) is full and the lottery is over.
Its loops mean you pass the same start and finish area again and again. That makes it easy for crew to find you, and easy to stop. Whether that suits you is your call.
Javelina Jundred: loops, one crew spot¶
The Javelina Jundred is one 22.3-mile loop and then four 19.45-mile loops on the Pemberton, Shallmo and Cinch Trails. Its page lists a 30-hour limit and +6,296 feet of gain, about 63 feet of climbing in every mile.
- Cutoffs: you must start loop 5 by 6:00 am in wave 1 (80.65 miles) or 6:30 am in wave 2. The finish cutoffs are 12:00 pm and 12:30 pm Sunday.
- Your crew: crewing is allowed only at Javelina Jeadquarters, and crew spaces are reserved in advance. That is one place, and every loop comes back to it.
- Pacers: after three loops (61.2 miles) or at sunset, whichever comes first, one at a time, on foot, picked up and dropped off only at Jeadquarters.
A course you can run most of is not an easy course. It is one where the clock does more of the work. There is a lap-by-lap Javelina post if you want the pacing math.
Pinhoti 100: point to point¶
The Pinhoti 100 gives 32 hours from a 6:00 am Saturday start, so the finish cutoff is 2:00 pm Sunday. Its page lists just over 14,000 feet of gain. Unlike the other two, this one goes from A to B, so crew drive between stations rather than waiting at one.
It also publishes a cutoff at every station. A few of them:
| Aid station | Mile | Cutoff |
|---|---|---|
| High Rock | 7.0 | Sat 8:07 AM |
| Cheaha Lake | 43.52 | Sat 7:30 PM |
| Clairmont Gap | 62.14 | Sun 1:49 AM |
| Bulls Gap | 87.98 | Sun 10:03 AM |
| Finish | 100.38 | Sun 2:00 PM |
The first gate is 2 hours 7 minutes for 7 miles, about 18:08 per mile. The finish is 32 hours for 100.38 miles, about 19:08, and the gates at Clairmont Gap and Bulls Gap work out to about the same. So the early gates are a little tighter than the overall pace. Cheaha Lake is also where the page lets a pacer join, at mile 43.5.
The crew rules are fussier here: one crew vehicle per runner, no car swaps, crew may help only within 100 feet of an aid station, and some stations are limited to odd or even bibs. Read them with the person who will be driving.
How to compare any race the same way¶
You can run the same three checks on any hundred you are curious about.
- Write the limit as a pace. Use the table above, or do the arithmetic: limit in minutes divided by distance in miles.
- Find every cutoff, not only the last one. If the race publishes a gate at each aid station, put them in a sheet beside the miles. Ultra cutoff times at every aid station shows how to read them, and the Leadville cutoff math works one through.
- Put the gain next to your own training. Not the race's gain against everyone else's. Yours. If the course climbs more than you can build near home, say so now. Power hiking and long days on feet do a lot of that work.
- Ask who is coming, and what the rules let them do. A pacer from mile 43.5 and a pacer from mile 61.2 are different nights. The crew and pacer guide covers what they will be asked to do.
What if it has been a long time?¶
Then the same checks apply, and one more: how much time you have. A hundred picked eight months out and one picked ten weeks out are different decisions. If you are coming back to this distance after years away, or after time off from running, the back after a long break post is the place to start. What you ran before still counts. It is just earlier.
If anything hurts as you build back up, that is a conversation for a physiotherapist or sports medicine doctor. A race pick will not settle it.
Which one, then?¶
If you want the easiest hundred, I cannot name it, and neither can anyone who has not seen your training and your crew. The one with a cutoff you can read at the door, a course you can prepare for at home, and a person who can reach you is a fair first choice. So is one that is not on this page.
The course is still the course. You are the one who decides to go meet it.
Look up the one you are thinking about. navrun.app/ultras