After competing recently in an endurance event, I have become motivated to search online for other such events and was amazed at what I found. The following list is in no particular order (so no complaining please!) because they vary in distance, event and location and is very difficult to compare. The list below has some of the famous ones, so I invite anyone else to produce a list of the lesser known events, more extreme or ones I have innocently missed off. Enjoy with awe!
The Marathon des Sables (MDS) (Marathon of the Sands) is a six-day, 254 km (156 mile) ultramarathon, which is the equivalent to six regular marathons. The longest single stage (2009) is 91 km (55 miles) long. This multiday race is held every year in the southern Moroccan desert. It is considered the toughest foot race on Earth. The first event of the Marathon started in 1986.
RAAM is the American answer to Europe’s Tour de France, yet the races differ. Both races’ courses have varied over their history. However, in the Race Across America the direction has always been from the West Coast to the East Coast of the United States, approximately 3,000 miles (4800 km) in about a week, making it a transcontinental event. A typical course might be from Oceanside, California, to Atlantic City, New Jersey. In contrast, the Tour de France is about 2,300 miles and takes about 3 weeks because it covers shorter distances each day.
Unlike most multi-day bicycle races such as the Tour de France, RAAM has no stages. There is no specified distance to travel each day. Until recently, there were no designated rest periods for food and sleep (sleep was optional). The clock runs continuously from start to finish as in a Time Trial. The final overall finish time includes rest periods. The winner is he or she who can ride the fastest while also making fewer and shorter stops. The winner usually finishes in eight to nine days, after riding approximately 22 hours per day through the varied terrain of the US. The recent addition of the team division has enabled finish times in the realm of six to seven days. Each racer has a support crew that follows in vehicles to provide food, water, mechanical repairs and medical aid. During the night, a vehicle with flashing lights is required to follow the rider to ensure safety.
Having to ride continuously for days with little to no sleep puts this event in the ultramarathon category. The continuous physical output places considerable strain on the competitors as well as their support crews. As many as 50% of solo participants drop due to exhaustion or for medical reasons. In addition, the race takes place on open roads, forcing participants to deal with sometimes dangerous traffic conditions.
The Ultra-Trail du Mont-Blanc (also referred to as UTMB) is a mountain ultramarathon. It takes place once a year in the Alps, across France, Italy and Switzerland. The distance is approximately 166 km, with a total elevation gain of around 9,400 m. The race is run in one leg. Some believe that it is the most difficult foot race in Europe. While the best trailers complete the loop in slightly more than 20 hours, most runners take 30 to 45 hours to reach the finish line. From 2006, a second race Courmayeur – Champex – Chamonix (half-loop) has also been organised, and a third race was added in 2009: “Sur les Traces des Ducs de Savoie”. Today, the races consist of the following; UTMB: Ultra-Trail du Tour du Mont-Blanc (166 km +9,400 m) CCC: Courmayeur – Champex – Chamonix (98 km +5,600 m) TDS: Sur les Traces des Ducs de Savoie (105 km +6,700 m) PTL: La Petite Trotte à Léon (250 km +18,000 m)
Competitors need to be in peak physical condition to take on this grueling challenge. The 160km (99.5 miles) Classic Arctic Circle Race ski route goes through beautiful arctic landscapes, 65km (40 miles) north of the polar circle. There is also the ACR 100, a shorter race of 100km (62 miles) covering similar terrain. The main race itself takes only three days, with the rest of the time given over to vital preparation, a Greenlandic church service (it is a Greenlandic tradition to start major events with one), and a gala party.
On December 12th, 2010, the sixth Antarctic Ice Marathon will take place at 80 Degrees South, just a few hundred miles from the South Pole at the foot of the Ellsworth Mountains. This race presents a truly formidable and genuine Antarctic challenge with underfoot conditions comprising snow and ice throughout, an average wind chill temperature of –20C, and the possibility of strong Katabatic winds to contend with. Furthermore, the event takes place at an altitude of 3,000 feet.
By competing in the world’s coolest marathon, the North Pole Marathon, you will become one of a truly select few to race at the top of the world – at the Geographic North Pole. And you will feel on top of the world when you manage to overcome the extreme sub-zero temperatures to finish 26.2 miles in one of the remotest parts of the planet. But first you must ask yourself if you have got the nerve and drive to travel to the North Pole and run on Arctic ice floes, with 6 to 12 feet separating you from 12,000 feet of Arctic Ocean? Can you handle the extreme cold? Are you fit enough? Do you want to push yourself to the edge? If the answer is yes, then you are ready for the North Pole Marathon. Join race director Richard Donovan, the first marathoner at both the North and South Poles, in a trip of a lifetime. Remember, this marathon is not run on land – it is run ‘on’ water, frozen water, in the high Arctic Ocean.
The Antarctic 100k ultra race will take place on December 15th. Undoubtedly, “the world’s coldest 100”, this ultra marathon challenge is reserved for only the toughest of endurance athletes. The 100k (62.1 miles) distance will seem endless, run under a sun that never sets against the backdrop of hills, mountains and large expanses of ice. This race presents the only opportunity to complete a 100k event on the frozen continent and creates the prospect of a 100k Seven Continents Club for global ultra athletes.
The Namibian 24h Ultra Marathon is a 24 hour ultramarathon that takes the participants through one of the oldest deserts on earth, the Namib Desert. The race is a 126 km, a distance equivalent to three marathons, self reliant race where participants must carry their own equipment (food, clothes, water, GPS, maps etc see kit list). Participants in the gruelling foot race cover 126 km, a distance equivalent to three marathons, in 24 hours. During the day the heat in the desert can reach above 45 degrees Celsius, and at night the temperature can drop as low as 0 degrees Celsius. The race was inaugurated in April 2008 and will be a yearly event.
The Badwater Ultramarathon describes itself as “the world’s toughest foot race”. It is a 135 mile (215 km) course starting at 282 feet (85 m) below sea level in the Badwater Basin, in California’s Death Valley, and ending at an elevation of 8360 feet (2548 m) at Whitney Portal, the trailhead to Mount Whitney. It takes place annually in mid-July, when the weather conditions are most extreme and temperatures over 120 °F (49 °C), even in the shade, are not uncommon. Consequently, very few people—even among ultramarathoners—are capable of finishing this grueling race.
The race starts at 7:00 am, usually on the last Friday each September, at the foot of the Acropolis. It runs out of Athens toward the coast and runs along the coast towards Corinth via Elefsis, Megara, and Kineta. The route reaches the Corinth Canal at 78.5 kilometers and the runners hit the first of six major check points at 81 kilometers.
After Corinth, the race heads toward Ancient Corinth, Nemea, Lyrkia and at 159 kilometers, reaches the top of Mount Parthenio. From there, it continues south toward Nestani and Tegea, before reaching the main Sparta highway just before the 200 kilometer mark. Runners must pass through 75 checkpoints along the way and each checkpoint has a cut-off time. Runners outside the cut-off may be pulled out of the race although tardiness in the first half of the race is generally tolerated. This tolerance begins to fade after sunset and in the last third of the race, organizers may pull out runners who are either outside the time limit or who display extreme fatigue.
In order to run in this race an individual must meet at least one of the following requirements:
1. The individual has finished a race of at least 100 km in less than 10 hours, 30 minutes.
2. The individual has competed in an event of more than 200 kilometers and has completed the race.
3. The individual has already competed in Spartathlon and has reached the checkpoint “Nestani” (172 km) in less than 24 hours, 30 minutes.
Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. Text is derived from Wikipedia.






























none of these sound like theyre any fun at all…..i’ll just stick to playing tennis, thank you
Nails!!!!!!
Oh my gosh, those are terrific distances + extremities!
Quite overwhelming for people like me, who aren’t in the least sporty…
Nice choice for a list, these guys are super fit, # 5 the North Pole one is not for me thanks.
Sounds like fun, if your a masochist. If only people would work so hard to actually accomplish something. I kid.
But seriously it’d be great to have international races among research teams trying to cure cancer or make solar power more viable ETC. that like get ESPN type coverage and we can all be fans of them like people are of sports teams and this will get them funding.
I’m surprised the Ironman triathalons weren’t included. Great list nonetheless
Looks like #4 must be the toughest – they can only find 9 people brave enough to start it.
Perhaps everyone else turned up in the same gear as the runners on the banner and then thought better of it.
Talk about grueling endurance, my girlfriend made me watch all 5 seasons of Grey’s Anatomy….
I don’t really see why people would do some of these, the Badwater Ultramarathon sounds like a silly way to die, for me.
IMO Ultra-Trail du Mont-Blanc seems to be the toughest! Try running a mile with one leg and you’ll understand.
The only reason why i don’t consider athletics as a complete sport is because it doesn’t require a person to be intelligent/brainy. It’s purely based on physical endurance and fitness.
The Antarctic marathon looks pretty serene, I wonder how the people who run in the pole marathons replenish their fluids?
I think I lost 10 lbs just by looking at this list.
Fantastic list. I’ve heard of a few of these. This topic gets me excited because I’m a sports scientist and a strength and conditioning coach. Anyone considering entering ensure you are well prepared and understand the risks. Extreme endurance training can be harmful to health. Many marathon runners and cyclists have arythmias and all sorts of cardiovascular problems, which can lead to death. There was a study done on marathon runners and it showed a lot of bad markers including compromised brain function, similar to the level of someone surviving a severe car accident.
I think I’ll stick to my short, high intensity training along with plenty of strength work.
The marathon race was made by Pheidippides after the battle of Marathon, to tell the Athenians that the had won the fight. He died as soon as he said “Nenikikamen” meaning “We won”!
I’m surprised we haven’t seen a comment saying something like “too arctic”.
too arctic
Thank you Wikepedia for writing such an amazing list for us!!
@Julius [8]: Jeez dude i had the same thing but with ***** and the city – nearly *****in died….
Very interesting list – Is it true that these hectic marathon runners just ***** and crap in their pants instead of stopping ? itd be pretty funny coming across a runner making poopsicles in the snow…
I’d need some serious motivation to uptake a run like these.
Like a few dobermans ready to bite my butt.
More power to the marathoners, but I don’t come from that gene pool.
I have always refrained from submitting because every list iv’e ever attempted sucked. if i knew i could just copy and paste from other websites i would’ve written so many lists by now.
The next Prime Minister of Australia (Tony Abbott Federal opposition Leader of the National Liberal Party) just competed in a Triathlon consisting of running, cycling and Swimming and completed in around 14hrs (Imagine running ,swimming and cycling for that long). Although not winning the event some competitors finished it 17-18 hrs after beggining, the winner in about 12hrs.
Not bad for a 50 sumthin year old man!!
@camocspro [9]:
–i agree with you, the ultra-trail du mont-blanc appears to be the most grueling (in many aspects)
i always thought “the run to the sun” (in maui) was one of the most difficult looking…..its an annual ultramarathon, it starts in the middle of the night, and you spend most of the time running up a *****ing volcano…….ug
the utmb was set up in a similiar fashion …..just colder….much much colder…..
If I didn’t have other things to do, I’d definitely try one of these. One of the most exhilirating days of my life was when I climbed up to Angel’s Landing in Zion Canyon NP. Nowhere near as intense obviously, but I wouldn’t mind trying something much more gruelling.
What a waste of time in pursuing any of these…anyways..great list!
Ultra-Trail du Mont-Blanc is run in one leg . . . Not on one leg !
Hey, if you can’t write a list then at least compile one, I say. Most listverse stuff comes from a source or several. Why bother rewriting it to sound like your own work? That’s what schoolchildren do. I say cut and paste- but credit the source (ahem!)
Anyway….
I know runners. I’m married to one. Dey be cwazy!
I could never get into it. Too much effort creating nothing but a crazier person in the long run (pun slightly intended).
This list proves it.
@Howard [24]: Would have been even more hardcore though
There are still discussions and doubts about the health benefits of a normal marathon. With the risk of heart failure increased for quite some time after. Surely.. all of these must be extremely unhealthy. The original goal of having a healthy body seems to have nothing to do with this. It’s all about mental endurance.
I read somewhere about climbing all three highest peaks in Scotland England and Wales within 24 hours; can’t remember what it’s called though
@*****stain [12]: What work does a ‘sports scientist’ do? I can look up on Google but would like to hear from you..straight from the horse’s mouth
Does anyone know logistically, how much the antarctic one is? There are a few so any info would be nice. I have thought of visiting antarctica many time but its too expensive (3000 USD), so please help.
ALSO awesome list
Sorry for misinterpreting “in one leg” as “on one leg”. Well then Ultra-Trail du Mont-Blanc is obviously not the toughest of the lot mentioned in the list.
I did #8 last year. It was actually pretty easy for me and my Pan Pipe Dreams.
Two words: 4 Deserts
http://en.wikipedia.org/wiki/4_Deserts
@camocspro [30]: we used to have one legged races when i was sunday school, yup they were pretty hard core but if you ever find your self watching a one legged race and they add a spoon with a boiled egg to balance while hopping then you just gotta sit back and prepare for the emotional roller coaster ride of a life time…..
I commented last week about the photography list that I thought some people have too much time on their hands. After reading this I know some people have too much time on their hands.
you definetely have to include the leadville 100, by far one of the toughest ultras
I was going to say the same thing. Race be crazy!
I’m tired just from reading this list. I always wanted to try running a marathon, but I was born with a set of defective knees.
Even if a pair of dobermans were chasing my butt, I still couldn’t run. Sucks big time.
Great list. More power to these people who attempt such feats.
Replace #1 with “The Obama Administration”. Just sayin’.
Great list but I can’t believe you didn’t mention the Iditarod.
http://en.wikipedia.org/wiki/Iditarod_Trail_Sled_Dog_Race
Too racy.
I like this one, Chris. But you left out Ocean Rowing. Now THAT’S takes nerve and endurance.
Great list.
@Julius [8]:
Ha! That’s good.
What! No SEALS BUDS training listed for “Grueling Endurance Events?”
http://www.sealchallenge.navy.mil/seal/buds.aspx
@Cammykinnis [6]: Ironman is for sissies try Ultraman:
6.2 miles (10k) swim
172 m (276k) bike ride
53 m (84k) run
There is also the Eco Challenge or the Primal Quest:
http://en.wikipedia.org/wiki/Primal_Quest
I think the list relies too much on running events, how about the Cadiz Freedom Swim:
“7.5km across the famous Robben Island channel, known for its bitterly cold water (around 13 degrees) and strong, unpredictable currents.”
What about a 25 minute MMA fight?
At the Badwater ultra-marathon, runners will run on the white lines of the roads to avoid having the bottoms of their shoes melt in the extreme heat.
Maybe I’m just biased but I think this should have been titled 10 Grueling Marathons only.
As someone already commented on, there are military training techniques that are far more grueling because it’s not just an endurance of aerobic ability but anaerobic, mental and recovery endurance all challenging you at mixed intervals.
This makes it harder to just plow through a wall of fatigue because literally every senses is required to endure.
Other events I would include are:
Triathlons – Not sure there are any in the list because I just skimmed the titles and saw marathons but switching range of movements is one of the hardest thing to prepare for.
MMA – Compared to other contact sports, it is among the most brutal because many aspects of your body needs to endure. You can have high cardio but if you have low anaerobic threshold you will gas yourself out. You can have strong endurance as far as sustaining round after round like a boxing match but if your grip is not on par with a powerlifter, no technical knowledge of submission is going to help. You are also highly reliant on the endurance and style of your opponent. Some who will run from you, others who will press you into the clinch and others who will force you to expend energy from defending takedowns and submission attempts. Only aspect this isn’t more grueling than military training is that your ability to remain awake or endure lack of scheduled rest isn’t tested to the brim.
@psychosurfer [43]:
Sorry didn’t notice you mentioning the Eco Challenge.
@General Tits Von Chodehoffen [44]:
Sorry I was writing a reply when you posted.
As someone’s who is in less than a fit condition, I can appreciate getting healthier. However, I have to question how healthy doing something like this is. Surely going to those extremes would be more harmful than helpful to the body?
I recognize that for ultramarathons, getting in shape isn’t the point, I was just curious as to how damaging something like this could/would be.
Thanks for some positive comments and yes it was a cut and paste job from wikipedia. Thank you Wikipedia your awesome! I have created a couple of lists that i thought up because they are missing from the site and also because they are about things im passionate about. The lists on this site are great for the content and research that went into them, not for the writing skills (which i have none of). Thats how i look at them anyway.
Pretty good list! I just thought I might point out that the wikipedia information about the UTMB is a little off. 9400 meters is close to a 31,000 foot elevation gain. Mt. Blanc is about 300 feet shy of being 16,000 feet, therefore that elevation gain is impossible. Just thought I'd point that out.
@SwampGuy [48]:
This is not the general consensus but is merely my own opinion:
In terms of health, basically it can be summed up to prolonged survival and maximized capacity for your necessity.
In the case for extreme events. The question is do you want achieving this events to be a part of your life?
So much so that you will become capable of doing these events?
If the answer is yes, then it is very healthy for you and your measurement of when it’s not healthy should be based on the injuries or prevention of injuries you get.
If however, you do not have a goal that requires you to be capable of running longer, then even if it improves your health because of your poor fitness, it isn’t as healthy as actually doing something that would help improve your performance in something that you need to do or something you are doing.
Here’s where it gets conflictive though.
Lots of people will say the best way to become fit is to have an alternate goal that will push you to become fit.
This is true in the sense that most everyday acts don’t require us to climb trees or chase food so it’s much harder to focus on fitness and health just from doing our everyday task.
The question though is whether once you successfully transitioned to sports like these, how satisfied are you that you’re running a less extreme distance? How much more joy do you feel to the point that it doesn’t become a monotonous slave job just to stay fit?
Then it becomes about passion. How far would you go to ensure that you will maximize training your body for such an event to the point that it won’t break your body.
…and when you reach that point, you’e in the same dilemma as many pro athletes.
Some who might just want to test themselves or stay fit but then suddenly feel the urge to compete and risk breaking their body.
For example, in MMA, there are athletes who purely train in it to be athletes while getting to enjoy a fight one time or another. But what happens if they risk being cut or they find themselves being beaten down? Do they cycle steroids? painkillers? Cut weight? Increase their natural body mass beyond what’s natural to them?
These aren’t always healthy especially done wrong but to these athletes healthy = being able to compete at MMA because it has become a part of their life.
-20C? Shiiiit, I walked to school every day in colder temperatures than that living in Canada.
Very interesting list!
Thanks for the interesting list
seems like climbing & reaching the summit of Mount Everest would also be quite the grueling,endurance feat.
My kind of list kudos. Im just crazy enough to try each and every one of these with my i-pod of course lol :p
I thought having to wade though Sluiq’s posts on yesterdays list was quite gruelling.
I think #5 takes the cake for being the most extreme. These people not only have to be incredibly brave, fit, heavily trained and severely medicated; but also completely and utterly CRAZY in the most EXTREMELY BONKERS MAD way imaginable.
I always found deca triathlons to be pretty crazy. They exist in two versions: one where you have to do one ironman each day for ten days, and the other version, where you just do the whole thing in one stretch. The distances in the latter are 38 km/23.6 miles of swimming, 1800 km/1,118.4 miles of cycling and finally 422 km/262.2 miles of running. The world record for this is around 192 hours.
@Lifeschool [54]: I agree. Reading the comments on this list is becoming a grueling endurance event of it’s own
Has anyone ever read “Ultramarathon Man”? I am not an avid runner (I do occasionally for fun only), but I still found the book extremely interesting. They talk about a few races that I could just not fathom.
Check out this guy dubbed “The Marathon Junkie”:
http://www.dispatch.com/live/content/sports/stories/2009/06/30/marathon_man.ART_ART_06-30-09_C1_M8EB5ND.html
@psychosurfer (57): Interesting! I can only assume long distance runners get an itch to run as soon as they take a day off. I used to walk a lot and my legs used to WANT to walk – I guess it’s muscle toning + muscle memory acting out??
I know marathon runners train their bodies to the point where running becomes automatic: remember Forrest Gump?
Ok, Chuck Engle may have run several long marathons in a week but has he completed 43 marathons in 51 days? (that’s running 10am – 9pm every day, 6 days out of 7). I couldn’t help posting this page about the comedian Eddie Izzard as non UK folks may have missed it:
http://www.thisislondon.co.uk/lifestyle/article-23744688-eddie-izzard-on-becoming-a-marathon-man.do
For those complaining about the source – it IS credited in the manner in which it is required to be credited – by being released under the same license.
These are all things that I could never accomplish, unless I really set my mind to it.
What about the race across the bridge in Lake Pontchartrain, Louisiana, that is considered a marathon? It is 23 miles long (3 m. on land) and has driven some people to insanity, staring at the same thing for 2 hours. That’s a true endurance test.