Testimonials – 80/20 Endurance

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80/20 Endurance Testimonials

Our plans have helped thousands of athletes across the globe whether they were seasoned veterans or first-timers. Our 80/20 Training Plans have a proven track record to help athletes at all levels in their chosen event.

But you don't have to take our word for it. Here are what athletes are saying after experiencing the 80/20 difference.


Mark Conway


I have travelled with 80/20 plans within my country, to Boston in 2018, and soon to Berlin. I am now a wholly better person than I was before.


Dennis Ruts

IRONMAN® or equivalent

I used the 80/20 plan for the first time this year. I absolutely loved it. Well Balanced and effective. I can't wait till my preparation for next year starts.


Tiara Womack

Half Marathon

David and 8020 helped me set a new half marathon PR of 1:46 from 2:35 in 15 weeks. Thank you David for your hands-on coaching. I love the data-driven, balanced approach. I'll never overtrain again.


Michael Shulman

IRONMAN® 70.3 or equivalent

Using your Level 3 Ironman 70.3 Plan I have gone from the bottom third to the top third in my age group at the half-Ironman distance.


Curtis Repen


In my first triathlon after switching to 80/20 I had my fastest swim pace at any distance and my fastest Olympic bike and run splits. Even my transitions were faster!


Mackenzie Howard


Matt created a customized training plan for me that not only allowed me to balance triathlon training with marathon training, but to have PR's in all my repeat races!


Jose Fraile


This year I decided to use an 80/20 plan. For the first time, I felt that my training had structure; each unit was part of a whole and it made sense. I was very satisfied with the results.


Mark White

IRONMAN® or equivalent

The best year ever! After a few years of sporadic training efforts and competing in triathlons from Sprint distance to full Ironman I decided to look into a more structured approach to training. After looking into the plethora of plans available, I selected a 80/20 Endurance plans. I completed 2 Sprints, 1 Olympic, 3 halves and 1 full Ironman, and setting personal bests at all distances, slicing 2 hours 20 from the full Ironman.


Scott Bleazard

IRONMAN® or equivalent

There’s no way I could have accomplished what I have without adhering to the 80/20 plan.


Mitch Atkinson


After deciding to pursue the goal of qualifying for the Boston Marathon, I purchased an 80/20 training plan. The results were dramatic. After one training cycle, I dropped over 31 minutes in my marathon time!


Erik Enqvist


80/20 provided a method and training plan that made me excel beyond my wildest imagination in my ever first triathlon.


Sergio Real

IRONMAN® 70.3 or equivalent

Used an 80/20 plan for Ironman 70.3 Bintan in Indonesia and it went perfectly. Sometimes I had doubts that the training was too light or intense, but I kept repeating to myself "Trust the plan" and I ended up having an amazing race--much faster than expected!


Helen Hayward

IRONMAN® 70.3 or equivalent

The 80/20 plan allowed me to train every day without getting stressed or fatigued and to show up on the day and perform fresh and uninjured.


Steve Messenger

IRONMAN® 70.3 or equivalent

By following the principles of the 80/20 programming I was able to finish my first ever Half Ironman. Leading up to the Half Ironman, I also ran my first ever half marathon. The 80/20 programming also helped me to get through my full racing season injury free as well as feeling well trained and ready for all of my races.


Greg Pawlisa

IRONMAN® or equivalent

Before I started your program I predicted a 14-hour finish in my first Ironman. After sticking to the program and training for six months my conference grew tremendously. I crushed my goal by three hours!


Christopher Barry

IRONMAN® or equivalent

I swear by 80/20 and always talk it up during tri conversations. Thank you!


Kevin Pogacar

IRONMAN® or equivalent

With this style of training, you can feel your gains throughout the season and you don't feel completely gassed every day.

Karin Peters

Karin Peters


I like 80/20 because it gives me permission to take it easy on some day. I don’t need to go out and hammer every day to get a new PR like I did in the beginning. The easy days are enjoyable and give me the power to nail (most of) my harder workouts. I don’t dread my sprint and hill work anymore, and at 54 I’m still setting PRs and I’ve been injury free.


John Hodges


The 80/20 program made my first Olympic Triathlon not only attainable, but something that left me hungry and ready for more the moment I crossed the finish line.


Marco la Spina


The 80/20 principles allowed me to improve my times for 5K and 10K cross country races. Staying injury-free paves the way to get personal bests because you can finish the plan with no surprises and no steps back.


Alicia Phillips


I was in that "every workout should be hard" mentality until I trusted the 80/20 plan. My hard workouts were tough, but having fresh legs going into them was key.


Shawn Platt

IRONMAN® 70.3 or equivalent

I honestly believe that there is no way I could've completed my first Ironman 70.3 were it not for the 80/20 training plan.


Troy Bedik


I’ve never felt more energized in a training cycle. I’m really able to balance my training load and my workload without burning out.

Marco de Tavira

Marco de Tavira

Half Marathon

After following the 80/20 plan I was able to break a personal best record. I not only finished within the goal I had set but did negative splits the entire race, which was a first for me.

Daniel Velardo

Daniel Velardo


After reading 80/20 Running and focusing on slowing down, I am absolutely amazed at the results. I just completed the Canberra Marathon in Australia in a PB of 2:52:48. By slowing down my recovery has been excellent, I am able to run my harder sessions harder and I no longer panic if I have to run a session slow, I actually look forward to the easy sessions now as a proper means of recovery and building aerobic capacity.


Marco Saraceno

Half Marathon

I have started to run after few years off and the 80/20 plan allowed me to get fit and achieve my first half marathon in Verona in no time! What I love most is that following a clear and defined plan boosts my motivation because I can see the progress I am making.


Rachel Whitehead

IRONMAN® 70.3 or equivalent

I purchased the 80/20 70.3 plan and it completely changed my game. Knowing what workouts you have to do and when to do them removed the hardest part of training for an event, in my opinion. All I had to do was show up when I said I was going to.

Bob Ford

Bob Ford

IRONMAN® 70.3 or equivalent

I used 80/20 for all of my raining this year and got my highest age-group finishes at any event in my nine years of racing triathlons.


Claire Colbert


I PB'd every race I did this year and then topped it off with my first 70.3 thanks to the 80/20 plan I used! PB'd the Olympic distance at nationals!

The 80/20 method really changed my approach to training and got me fitter than I've ever been without a single injury.

Jeremy Bigglearr

Jeremy Biggelaar

Half Marathon
Kudos and appreciation to your training programs as I set a new 1/2 marathon PB at 1:28:20 (6:13 off my previous best). My cycling FTP is now just short of 300W (from 230W) after starting training with your programs around 8 months ago. I also took 30 minutes off my 70.3 personal best time with a 4:56, while balancing a large family and professional commitments.

Jim Moore


When I made the switch to 80/20 I quickly realized that after 10 years of hard training, this new method felt very doable and was a comfortable fit. Thanks for making it available to us in the age-group triathlon world.


Julia Ponce


I am satisfied with your 80/20 training plan. Thank you very much for your help in attaining my goals.


Mark Burdeshaw


I loved the Olympic plan I used about a year ago. Now I'm ready to do a half-Ironman.

Lai Flushing

Lai Flushing

Half Marathon

I trained with the 80/20 half marathon plan, and did a personal best! I felt good after! It made me think about what it could do for me for a marathon or beyond. It taught me so much about how to pace myself and be more in tune with my body when I ran. I cannot recommend this training enough. It made me believe that Matt Fitzgerald and David Warden truly know how to train us to be better athletes.


Mark Sun

Half Marathon

Absolutely loved the plan. It has allowed me to cut almost 8 1/2 minutes off my half marathon PB, and I felt so good around the tough, hilly course that I really enjoyed the experience too. The workouts were really varied and fun (well sometimes fun in a brutal way haha) and I got great support from David when I had any questions about the plan. Would recommend unreservedly. Now looking forward to kicking off the next level!


Mikhail Tinovitckii

IRONMAN® 70.3 or equivalent

With 80/20 training, I improved my 70.3 result by almost half an hour.


Sarah Pirolli


Heart rate training can definitely feel like defeat when you focus on how slow your training paces are, but the victory comes on race day. I am so glad I found 80/20 Running!


Brett Hoyer


By following the 80/20 program I transformed from a 222-lb nonrunner to a 175-lb marathoner in the 10 months.


Shawn Craig

IRONMAN® 70.3 or equivalent

I really felt my endurance build consistently throughout the training with my Level 3 80/20 Ironman 70.3 Plan. I was fatigued at times but never felt overtrained, and I went into my A race feeling more prepared then the three years prior.


Edson Vassoler

IRONMAN® 70.3 or equivalent

After three surgeries in three years I realized my way of training was wrong. After reading the book 80/20 Triathlon I decided to give it a try. It was fun and easy to follow and I ended up with my a PR in all three disciplines!


Roger Hipwell

IRONMAN® or equivalent

This past weekend I completed Ironman Wisconsin on the Run/Bike Power version of the Level 2 80/20 plan. While the volume was drastically higher than any I had done in past years, I had no injuries and I felt confident in the specificity of the purpose for each workout. On race day I was able to hit my power and pace targets and finish strong with a smile on my face!


A.J. Moser


I tell everyone about your plans. I’ve recently PR’d my 5k, half, full marathon, and 70.3.


Pat Donohue

IRONMAN® 70.3 or equivalent

I used the 80/20 plan to prepare for my first triathlon, which was also an Ironman 70.3. I was worried about injuries, available time, and being in shape to go the distance. All this worry for no reason, as the plan worked me up to the correct endurance levels without too many stresses on my aging body, and my plan did not overtake my life.

Andy Jones

Andy Jones


Thank you 80/20 Endurance! I followed the plan and ran a half marathon as a "feeler." I ran a 1:26, won my age group and was amazed that I could run that pace. Using 80/20, I went back to a marathon course where I ran a 3:23 on and ended up running a 3:13! I'm now qualified for the Boston Marathon!

Dwight Robertson

Dwight Robertson

IRONMAN® or equivalent

Thank you for the role 80/20 played in getting to the finish line of Ironman Arizona. Going top 10% for my age group feels really great. Thanks for helping me conquer this life goal!


Pete Babins

IRONMAN® 70.3 or equivalent

I'm making a lot of progress due to the increased volume I'm able to do by just slowing down. I'm also feeling more rested for the tough workouts and really appreciating the recovery workouts in between.


Juan Carlos Diaz Arelle

IRONMAN® 70.3 or equivalent

The best thing is that, throughout the training plan, I always felt great. I was never injured and enjoyed the experience.

Here are some more examples of how our 80/20 Training Plans make a huge difference!

Veteran Athletes
First Time Athletes

Daniel VelardoVictoriaMarathonI achieved a personal best and gained many other benefits by slowing down. My recovery was better, I wasn’t sore during runs, and my body was always ready for the high-intensity speed sessions.
Christi LandaetaVenezuelaHalf MarathonAfter a lengthy break from running, I ran the Miami Beach Halloween Half Marathon in 2:40:56. Since then I've been following the principles laid out in the 80/20 Running book. I ran another Half marathon in Caracas, Venezuela and got me a PB of 02:12:13. The result speaks for itself!
Roger ThompsonWashingtonOlympicThanks to your plans, I was able to capture a USATriathlon National Title in Cleveland this year.
Chris RydelskiWisconsinIRONMAN® or equivalentI PR'd in the Ironman 70.3 as well this year by 20 mins!
Tom BryantLondonMarathonIn April 2019, I ran my first marathon in 3:50. Five months later, after training with an 80/20 plan, I ran the Berlin Marathon in 3:36 (a 14-minute improvement!)
Alex OchoaCiudad de MéxicoSprintWhen I started to use my current 80/20 triathlon training program I realized that my endurance and performance were increasing.
Bettina DorschGermanySprintThe training was intensive, but did not burn me out. And I still had enough time for my family and my job!
Brendan GriffinTexas5KI never got through a block of training without injuring myself and feeling so frustrated about starting over. I finally found what works for me with 80/20 Running. No injuries, a personal best, and a newfound love of running!
Tom BrooksVictoriaHalf Marathon80/20 works. I've gotten amazing results and remained injury-free.
Barnaby CoupeNottinghamOlympicI switched to the 80/20 Olympic Plan in January 2019, which allowed me to train far more consistently and I ended up taking over 20 minutes off my PB in May 2019.
David RaymenHertfordshireIRONMAN® 70.3 or equivalentI used the 80/20 plan this year and found it great, as I have a busy life juggling work and a young family. It just took the worry out of thinking about what to do.
Paul CarrollShropshireHalf MarathonI'm training for a marathon with an 80/20 plan but I ran a half marathon as race prep and got a three-minute PB.
Doug SimmsWashingtonIRONMAN® 70.3 or equivalentI used 80/20 for the first time in attempting to go below 5 hours in an Ironman 70.3. It was a definite game changer. I would highly recommend the programs.
Konstantinos MichopoulosGreeceMarathonI found my 80/20 Marathon Plan coherent, thorough, and easy to follow, with thorough information and additional resources.
Elizabeth SweetNew YorkIRONMAN® 70.3 or equivalent80/20 plans take all of the guesswork out of training for triathlon. I have successfully used the plans for both the half and full Ironman distance and each time I have crossed the finish line feeling strong, confident, and happy!
Gavin MooreQueensland AustraliaIRONMAN® 70.3 or equivalentI used your plan in the lead-up to Cairn 70.3 in June 2019. I was fitter and stronger than in my first attempt at a half IM and came away with a strong finish.
Jason HendyMassachusettsIRONMAN® 70.3 or equivalentAfter learning the hard way what overtraining syndrome was in my first year in triathlon, and only training at one speed in year two, using the 80/20 method revolutionized my training in year three.
Jon OttossonSweden10KThe 80/20 method helped me shave minutes from my 10K time.
Kurt PhillipsOhioSprint As a result of following my 80/20 plan plan to the letter, I dropped my sprint triathlon time from 1:27 to 1:09!
Lindsey NoseworthyMassachusettsIRONMAN® 70.3 or equivalentAfter having three surgeries in eight months to realign my right leg, I knew I had to train smarter. 80/20 was the perfect balance to avoid the overtraining and damaging injuries.
Luke HendersonVictoriaIRONMAN® or equivalentThe 80/20 plan was great. It kept training super interesting and intentional, and helped lift me to a new level.
Michelle LeeWashingtonHalf MarathonWith the 80/20 Half Marathon HR Plan I was able to get my aerobic base up and cut my time by over 30 minutes.
Markus BoehlerAustriaIRONMAN® or equivalentThe last races with your plans were very succesfull.
Thank you for that.
Martijn CrajéGelderlandIRONMAN® 70.3 or equivalent80/20 is the Holy Grail for me. I can actually feel the improvement, but I am never too tired to train.
Tim Siegenbeek van HeukelomNew South WalesMarathonI've been using your plans since 2015 and they have helped me with a range of (half) marathons, trail runs, ultras, and simply keeping fit. Best thing I ever did to improve my running was adopting the 80/20 practice.
Michael SchollmeierIllinoisIRONMAN® or equivalentThe 80/20 training plan ramps athletes up though the various training phases, intensities, and distances to help keep you injury free. The increases in distance were easily managed. I highly recommend the purchased plan versus simply using a training plan from the 80/20 Triathlon book. Finding and adjusting my various zones was fairly easy to do. I had an issue with one area, and emailed for assistance. I received a very quick and helpful reply from David. So happy with my results. I will use 80/20 plans again next year.

Thank you for your plans!

Seth BaglinCaliforniaIRONMAN® 70.3 or equivalentBy following 80/20 Endurance, I not only drastically lowered my HR during my training and race, but I shaved off 50 minutes from my time!
Steffen RettigSaxonIRONMAN® or equivalentThe 80/20 plan was perfect for me.

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