Searching...
English
English
Español
简体中文
Français
Deutsch
日本語
Português
Italiano
한국어
Русский
Nederlands
العربية
Polski
हिन्दी
Tiếng Việt
Svenska
Ελληνικά
Türkçe
ไทย
Čeština
Română
Magyar
Українська
Bahasa Indonesia
Dansk
Suomi
Български
עברית
Norsk
Hrvatski
Català
Slovenčina
Lietuvių
Slovenščina
Српски
Eesti
Latviešu
فارسی
മലയാളം
தமிழ்
اردو
50/50

50/50

by Dean Karnazes 2009 333 pages
Sports
Memoir
Fitness
Listen
9 minutes

Key Takeaways

1. Embrace the challenge: 50 marathons, 50 states, 50 days

"If you had told me that I would one day make a living by doing things like running for twenty-four hours on a treadmill hanging twenty feet above Times Square while TV cameras beamed my image across the world, I would have said you were crazy."

The Endurance 50 challenge was born out of Dean Karnazes' love for pushing his limits and exploring the boundaries of human endurance. This ambitious project aimed to run 50 marathons in 50 states over 50 consecutive days, combining the thrill of running with a cross-country adventure. The challenge required:

  • Meticulous planning and logistics
  • Support from sponsors and a dedicated crew
  • Adapting to different terrains, climates, and altitudes
  • Balancing physical exertion with recovery and travel

The Endurance 50 served as a platform to inspire others, promote physical activity, and test the limits of human capability. It demonstrated that with proper preparation, support, and determination, seemingly impossible feats can be achieved.

2. Running is about passion, not just physical endurance

"There is nothing magical about my everyday rules for healthy eating. I do the same things many other careful eaters do."

Passion fuels performance. While physical training is crucial, it's the deep-rooted love for running that sustains ultra-endurance athletes through grueling challenges. This passion manifests in various ways:

  • Finding joy in the act of running itself, not just in competition
  • Using running as a form of self-expression and exploration
  • Embracing the mental and emotional benefits of running
  • Continuously seeking new challenges and pushing personal boundaries

For many runners, including Karnazes, running transcends mere exercise to become a lifestyle and a means of self-discovery. This passion helps overcome physical discomfort, mental fatigue, and the monotony of long-distance running.

3. Adapt and overcome: Dealing with unexpected obstacles

"I believe the human body was made to move and that we can all enjoy miles of injury-free running if we get into shape and then simply allow our body to do what it was designed to do."

Flexibility is key in extreme endurance events. The Endurance 50 challenge presented numerous unexpected obstacles that required quick thinking and adaptability:

  • Weather extremes: from scorching heat to freezing cold
  • Injuries and physical setbacks
  • Logistical challenges and route changes
  • Mental fatigue and emotional ups and downs

Successful ultra-runners develop strategies to overcome these challenges:

  • Mental preparation for potential obstacles
  • Developing a problem-solving mindset
  • Building a support system to help navigate difficulties
  • Focusing on the present moment rather than being overwhelmed by the entire challenge

4. The power of community in extreme endurance events

"United we run."

Running connects people. The Endurance 50 challenge demonstrated the incredible power of community in supporting and motivating runners:

  • Local runners joining for portions of each marathon
  • Spectators and volunteers providing encouragement and support
  • Fellow ultra-runners offering advice and camaraderie
  • Online communities following and cheering from afar

This sense of community:

  • Provides emotional support during difficult moments
  • Offers practical assistance (e.g., pacing, nutrition)
  • Creates a shared experience that transcends individual goals
  • Inspires others to pursue their own running challenges

5. Mental toughness: The key to pushing beyond perceived limits

"He who suffers remembers."

Mind over matter is crucial in ultra-endurance events. Mental toughness often makes the difference between finishing and giving up:

  • Developing strategies to overcome pain and fatigue
  • Maintaining focus and motivation over long periods
  • Breaking the challenge into manageable segments
  • Cultivating a positive mindset and self-talk

Techniques for building mental toughness:

  • Visualization and mental rehearsal
  • Setting intermediate goals and celebrating small victories
  • Practicing mindfulness and staying present
  • Learning from past experiences and failures

6. Balancing family, work, and an extreme running challenge

"Life is a struggle. Life will always be a struggle, though we must never give up the fight."

Prioritization is essential when pursuing extreme endurance challenges. Balancing family, work, and running requires:

  • Clear communication with family and employers
  • Efficient time management and planning
  • Making sacrifices in other areas of life
  • Finding ways to involve family in the running journey

Strategies for maintaining balance:

  • Incorporating running into daily routines (e.g., running commutes)
  • Setting realistic expectations and goals
  • Leveraging technology for remote work and communication
  • Finding synergies between running and other life responsibilities

7. Nutrition and recovery strategies for back-to-back marathons

"If it stinks, eat it."

Proper fueling and recovery are critical for sustaining performance over multiple marathons. Key aspects include:

Nutrition:

  • High-calorie, easily digestible foods during runs
  • Balanced meals between marathons to replenish nutrients
  • Hydration strategies tailored to individual needs and climate

Recovery:

  • Active recovery techniques (e.g., light jogging, stretching)
  • Adequate sleep and rest between marathons
  • Massage and other bodywork to prevent injuries
  • Mental recovery through relaxation and stress management

8. The environmental impact of running and personal responsibility

"Runners should be leaders in the fight to save the planet."

Eco-conscious running is becoming increasingly important. The Endurance 50 challenge raised awareness about the environmental impact of running events and personal choices:

  • Carbon footprint of travel and event logistics
  • Waste generated by running gear and nutrition products
  • Impact of large-scale running events on local ecosystems

Karnazes advocated for:

  • Carbon offsetting through tree planting
  • Choosing eco-friendly running gear and nutrition options
  • Supporting races with strong environmental policies
  • Personal lifestyle changes to reduce environmental impact

9. Finding motivation in the face of exhaustion and doubt

"You're better than you think you are."

Motivation fluctuates during long-term challenges. The Endurance 50 required constant re-motivation:

Sources of motivation:

  • Personal goals and the desire to complete the challenge
  • Inspiring others and promoting physical activity
  • Support from family, friends, and fellow runners
  • The beauty and diversity of running across America

Strategies for staying motivated:

  • Breaking the challenge into smaller, achievable goals
  • Focusing on the journey rather than just the end result
  • Connecting with the "why" behind the challenge
  • Celebrating small victories along the way

10. The evolution of running gear and its impact on performance

"Fit is the most important factor to consider when choosing a running shoe."

Technology enhances performance. The Endurance 50 showcased the importance of proper gear:

Key gear considerations:

  • Shoes designed for long-distance comfort and durability
  • Moisture-wicking clothing for various weather conditions
  • Nutrition and hydration systems for on-the-go fueling
  • Technology for tracking performance and recovery

Karnazes emphasized:

  • The importance of finding gear that works for individual needs
  • Balancing innovation with simplicity and functionality
  • Testing gear thoroughly before relying on it for long distances
  • Adapting gear choices to specific race conditions and personal preferences

11. Life lessons learned through extreme endurance running

"Running is a microcosm of life."

Running teaches valuable life skills. The Endurance 50 challenge provided numerous lessons applicable beyond running:

  • Perseverance in the face of adversity
  • The importance of goal-setting and planning
  • Adapting to changing circumstances
  • The power of community and support systems

Life lessons from ultra-running:

  • Breaking large challenges into manageable steps
  • Embracing discomfort as a path to growth
  • The importance of self-care and recovery
  • Finding purpose and meaning in difficult pursuits

Last updated:

Review Summary

3.77 out of 5
Average of 4k+ ratings from Goodreads and Amazon.

Readers generally enjoyed 50/50, praising Karnazes' inspirational story and running tips. Many found the book engaging and motivating, appreciating the author's humble tone and practical advice. Some criticized the lack of depth in marathon descriptions and felt the book was too simplistic or repetitive. Several reviewers noted the book's dual nature as both a memoir and a running guide. While most were impressed by Karnazes' feat, opinions varied on the book's overall quality and usefulness for runners of different levels.

About the Author

Dean Karnazes, born Constantine Karnazes, is an American ultramarathon runner and author known for his extreme endurance feats. He gained widespread recognition for completing 50 marathons in 50 states in 50 consecutive days, which he chronicled in his book "50/50." Karnazes has written multiple books on running and endurance, sharing his experiences and advice with readers. His accomplishments include running 350 continuous miles, completing marathons in all 50 U.S. states in 50 consecutive days, and running across Death Valley in the middle of summer. Karnazes' writing style is described as inspirational and conversational, making his experiences relatable to readers despite his extraordinary achievements.

0:00
-0:00
1x
Create a free account to unlock:
Bookmarks – save your favorite books
History – revisit books later
Ratings – rate books & see your ratings
Listening – audio summariesListen to the first takeaway of every book for free, upgrade to Pro for unlimited listening.
Unlock unlimited listening
Your first week's on us
Today: Get Instant Access
Listen to full summaries of 73,530 books. That's 12,000+ hours of audio!
Day 5: Trial Reminder
We'll send you a notification that your trial is ending soon.
Day 7: Your subscription begins
You'll be charged on Sep 26,
cancel anytime before.
What our users say
“...I can 10x the number of books I can read...”
“...exceptionally accurate, engaging, and beautifully presented...”
“...better than any amazon review when I'm making a book-buying decision...”
Compare Features
Free Pro
Read full text summaries
Listen to full summaries
Unlimited Bookmarks
Unlimited History
Benefits
Get Ahead in Your Career
People who read at least 7 business books per year earn 2.3 times more on average than those who only read one book per year.
Unlock Knowledge Faster (or Read any book in 10 hours minutes)
How would your life change if we gave you the superpower to read 10 books per month?
Access 12,000+ hours of audio
Access almost unlimited content—if you listen to 1 hour daily, it’ll take you 33 years to listen to all of it.
Priority 24/7 AI-powered and human support
If you have any questions or issues, our AI can resolve 90% of the issues, and we respond in 2 hours during office hours: Mon-Fri 9 AM - 9 PM PT.
New features and books every week
We are a fast-paced company and continuously add more books and features on a weekly basis.
Fun Fact
2.8x
Pro users consume 2.8x more books than free users.
Interesting Stats
Reduced Stress: Reading for just 6 minutes can reduce stress levels by 68%
Reading can boost emotional development and career prospects by 50% to 100%
Vocabulary Expansion: Reading for 20 minutes a day are exposed to about 1.8 million words per year
Improved Cognitive Function: Reading can help reduce mental decline in old age by up to 32%.
Better Sleep: 50% of people who read before bed report better sleep.
Can I switch plans later?
Yes, you can easily switch between plans.
Is it easy to cancel?
Yes, it's just a couple of clicks. Simply go to Manage Subscription in the upper-right menu.
Save 62%
Yearly
$119.88 $44.99/yr
$3.75/mo
Monthly
$9.99/mo
Try Free & Unlock
7 days free, then $44.99/year. Cancel anytime.