Other : Ultramarathon

About the Ultramarathon Program

Is 26 miles 385 yards too short for you? Would you like to move upwards in distance and become an ultramarathoner? A runner of ultras? Here is a training program to get you ready to race 50 kilometers (31.1 miles). That is only a half dozen more miles than the classic 26.2,, but those half dozen miles can be a struggle if you do not train properly. All will be revealed in the daily emails Hal will send you if you sign up for this 50-K ultramarathon training program. You can run 50-K!

Interactive program available on

At a glance

Author: Hal Higdon

Length: 26 Weeks

Typical Week: 2 Day Off, 7 Other, 5 Run

Longest Workout: 31.1 miles

What do I get?

  • Stay motivated for the race with daily tips from Hal in your inbox
  • Monitor your progress within TrainingPeaks’ online tools, apps, and wearable integrations
  • Access charts and graphs to understand training load
  • Tap into TrainingPeaks experience

Hal on his Ultramarathon Program

Welcome to Ultramarathon 50-K. This 26-week program is designed to benefit runners looking to move beyond the classic 26 mile 385 yard marathon distance, specifically a 50-K (31.1-mile race, an ultramarathon. Does the thought of running an “ultramarathon” race frighten you? Perhaps it should, because only well-trained athletes should consider venturing into Ultra Territory.

Long Runs: The key to the program is the long run on weekends, which builds from 10 miles in the first week to a maximum of 20 miles, then jumps to a peak of 4 or 5 miles. Consistency is most important. You can skip an occasional workout, or juggle the schedule depending on other commitments, but do not cheat on the long runs. Notice that although the weekly long runs get progressively longer, every third week is a “stepback” week, where we reduce mileage to allow you to gather strength for the next push upward. Rest is an important component of any training program.

Run Slow: Normally I recommend that runners do their long runs anywhere from 30 to 90 or more seconds per mile slower than their marathon pace. This is very important. Listen to what the Coach is about to tell you! The physiological benefits kick in around 90-120 minutes, no matter how fast you run. You’ll burn a few calories and trigger glycogen regenesis, teaching your muscles to conserve fuel. Running too fast defeats this purpose and may unnecessarily tear down your muscles, compromising not only your midweek workouts, but the following week’s long run. Save your fast running for the marathon itself. There are plenty of days during the rest of the week, when you can run race pace. So simply do your long runs at a comfortable pace, one that allows you to converse with your training partners, at least during the beginning of the run. Which brings up my next point.

3/1 Training: Toward the end of the run, if you’re still feeling fresh, you may want to pick up the pace and finish somewhat faster. This will convert your long run into what I call a 3/1 Run. That means you run the first three-fourths of your long run (say the first 12 miles of a 16-miler) at an easy pace, then do the final one-fourth (4 miles of a 16-miler) at a somewhat faster pace–though still not race pace. This 3/1 strategy is advised for only the most experienced runners, and I don’t recommend you do it more than once out of every three weekends. In other words: first weekend, easy run; second weekend, 3/1 run; third weekend, step back to a shorter distance. My philosophy is that it’s better to run too slow during long runs, than too fast. The important point is that you cover the prescribed distance; how fast you cover it doesn’t matter.

Walking Breaks: Walking is a perfectly acceptable strategy even for ultramarathon runners, and it works during training runs too. While some coaches recommend walking 1 minute out of every 10, or walking 1 minute every mile, I teach runners to walk when they come to an aid station. This serves a double function: 1) you can drink more easily while walking as opposed to running, and 2) since many other runners slow or walk through aid stations, you’ll be less likely to block those behind. It’s a good idea to follow this strategy in training as well. (You may want to use a water belt if you don’t have easy access to water on your training course.) You will lose less time walking than you think. I once ran a 2:29 marathon as a master, winning a world title, walking through every aid station. My son Kevin ran 2:18 and qualified for the Olympic Trials employing a similar strategy. And Bill Rodgers took four brief breaks (tying a shoe on one of them) while running 2:09 and winning the 1975 Boston Marathon. Walking gives your body a chance to rest, and you’ll be able to continue running more comfortably. It’s best to walk when you want to, not when your (fatigued) body forces you too.

Race Pace: What do I mean by “race pace?” It’s a frequently asked question, so let me explain. Race pace is the pace you plan to run in the race you’re training for. If you were training for a 4:00 marathon, your average pace per mile would have been 9:09. A 5:00 ultramarathon 50-K would have a similar race pace. So you would run that same pace when asked to run race pace (sometimes stated simply as “pace” on the training charts). If you were training for a 5-K or 10-K, “race pace” would be the pace you planned to run in those races. Sometimes in prescribing speedwork, I define paces for different workouts as 5-K pace or 10-K pace, but you won’t be asked to run this fast in the 50-K program.

Cross-Training: Mondays in the intermediate programs are devoted to cross-training. What is cross-training? It is any other form of aerobic exercise that allows you to use slightly different muscles while resting (usually) the day after your long run. In this program, we run long on Sundays and cross-train on Mondays. The best cross-training exercises are swimming, cycling or even walking. What about sports such as tennis or basketball? Activities requiring sideways movements are not always a good choice. Particularly as the mileage builds up toward the end of the program, you raise your risk of injury if you choose to play a sport that requires sudden stopping and starting. One tip: You don’t have to cross-train the same each week. And you could even combine two or more exercises: walking and easy jogging or swimming and riding an exercise bike in a health club. Cross-training for 30-60 minutes will help you recover after your Sunday long runs.

Midweek Training: Training during the week also should be done mostly at a comparatively easy pace. As the weekend mileage builds, the weekday mileage also builds. Add up the numbers, and you’ll see that you run roughly the same mileage during the week as you do during long runs on the weekends. Midweek workouts on Wednesdays build from 5 to 10 miles. There are similar slight advances on Tuesdays and Thursdays. The program is built on the concept that you do more toward the end than at the start. That sounds logical, doesn’t it? Believe me–as tens of thousands of marathoners using this schedule have proved–it works.

Rest: Despite my listing it at the end, rest is an important component of this or any training program. Scientists will tell you that it is during the rest period (the 24 to 72 hours between hard bouts of exercise) that the muscles actually regenerate and get stronger. Coaches also state that you can’t run hard unless you are well rested. And it is hard running (such as the long runs) that allows you to improve. If you’re constantly fatigued, you will fail to reach your potential. This is why I designate Friday as a day of rest for intermediate runners. It allows you to gather forces for hard running on Saturdays and Sundays. If you need to take more rest days–because of a cold or a late night at the office or a sick child–do so. And if you’re tired from the weekend, take Monday off as well–or cut the length of your cross-training. The secret to success in any training program is consistency, so as long as you are consistent with your training during the full 18 weeks of the program, you can afford–and may benefit from–extra rest.

Speedwork? There is no speedwork involved in the ultramarathon 50-K program. If you feel you need speedwork to improve, check out the advanced training schedules, which offer hill training, interval training and tempo runs on different days of the week. Normally, however, I recommend that ultramarathoners save their speedwork for times of the year when they are not doing a marathon mileage buildup. Check the shorter-distance training programs elsewhere on this web site for more on that.

Moving Past the Marathon: This 50-K program closely mimicks my Intermediate 2 marathon training for the first 18 weeks. At that point, I suggest you consider running a 26.2-mile marathon, but running it as a training run. (Notice, I merely suggest you run a marathon, since there is an option. If no marathon in that week appeals to you, do a workout that distance. The following eight weeks offer a shift for the Saturday and Sunday runs from distance-based to time-based running. You will then be in ultra mode when the most important tactic is to stay on your feet for the extended distance. Thus, I don’t care how fast you run for this time-based part of your training; I just want you out there moving forward, which is what you will need to do in the ultra to both finish and finish in a good time.

Modifying the program: My training programs are not carved in concrete, and you can make appropriate changes based on your experience, or to suit your convenience. One frequent request made by runners using my forums is to modify the order of the weekend runs, particularly those who want to run long on Saturdays instead of Sundays, because that’s when their friends do their long runs. Running with friends is certainly more fun than running alone, but the pace runs are placed on Saturdays ahead of the long runs on Sundays for a purpose. The main reason is to tire you out a bit in the first workout Saturday so you are not tempted to do the second workout Sunday too fast. It is also difficult to hit race pace on Sunday the day after a draining long run. Some runners ask if they can split these two workouts, for example, running pace on Friday and long on Sunday. They can, but it defeats somewhat the purpose of two “hard” workouts back to back on Saturdays and Sundays. Most runners have more time for their training on the weekends. So modify the program if you want, but if you make too many modifications, you’re not following the program.

Week Mon Tue Wed Thu Fri Sat Sun
1 Rest 3m run 5m run 3m run Rest 5m pace 10m run
2 Rest 3m run 5m run 3m run Rest 5m run 1.5 hr run
3 Rest 3m run 6m run 3m run Rest 6m pace 8 m run
4 Rest 3m run 6m run 3m run Rest 6m pace 13 m run
5 Rest 3m run 7m run 3m run Rest 7m run 2 hr run
6 Rest 3m run 7m run 3m run Rest 7m pace 10 m run
7 Rest 4m run 8m run 4m run Rest 5m pace 16 m run
8 Rest 4m run 8m run 4m run Rest 8m run 2.5 hr run
9 Rest 4m run 9m run 4m run Rest Rest 13.1 m
10 Rest 4m run 9m run 4m run Rest 9m pace 3 hr run
11 Rest 5m run 10m run 5m run Rest 10m run 20 m run
12 Rest 5m run 6m run 5m run Rest 6m pace 2 hr run
13 Rest 5m run 10m run 5m run Rest 10m pace 20 m run
14 Rest 5m run 6m run 5m run Rest 6m run 2.5 hr run
15 Rest 5m run 10m run 5m run Rest 10m pace 20 m run
16 Rest 5m run 8m run 5m run Rest 10m pace 3 hr run
17 Rest 4m run 6m run 4m run Rest 4m pace 8 m run
18 Rest 3m run 4m run Rest Rest 2m run 26.2 m
19 Rest Rest Rest 3m run Rest 1.0 hr run 1.0 hr run
20 Rest 3m run 10m run 3m run Rest 1.0 hr pace 3.0 hr run
21 Rest 3m run 6m run 3m run Rest 1.5 hr run 2.0 hr run
22 Rest 3m run 10m run 3m run Rest 1.5 hr pace 4.0 hr run
23 Rest 4m run 7m run 4m run Rest 2.0 hr run 3.0 hr run
24 Rest 4m run 10m run 4m run Rest 2.0 hr pace 5.0 hr run
25 Rest 4m run 8m run 4m run Rest 1.0 hr run 1.0 hr run
26 Rest 4m run 4m run Rest Rest 2m run 31.1 m