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Relentless

From Good to Great to Unstoppable

by Tim S. Grover

The trainer of elite athletes describes the relentless mindset behind extraordinary performance.

  • Published 2013
  • Easy read
  • Stories and memoir
  • 1 min analysis
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Introduction

Tim S. Grover, a trainer who worked with basketball stars including Michael Jordan and Kobe Bryant, published Relentless in 2013. He describes three types of performers: Coolers, Closers and Cleaners, with Cleaners being the most relentless.

The book is intense and uncompromising.

Who should read this book?

Highly driven readers, athletes and competitors who want an intense motivational push.

Helps with: Build better habits, Stay motivated

The central message

Elite performers are relentless: they never stop pushing, trust their instincts and thrive under pressure.

Key ideas and concepts

  1. Coolers, Closers and Cleaners

    Three levels of performers.

  2. Trust your instincts

    Act without overthinking.

  3. Embrace pressure

    Use pressure as fuel.

  4. Never satisfied

    Keep pushing after success.

  5. The dark side

    Grover describes the intensity that drives elite performers.

Deeper analysis

Relentless is energizing and offers insight into elite athletes. Many highly driven readers find it motivating.

Its intensity can promote an unhealthy, all-consuming view of success, and its stories are anecdotal. Readers should take what's useful and balance it with wellbeing.

Practical applications

  • Identify whether you're a Cooler, Closer or Cleaner.
  • Set a high standard for one goal.
  • Act decisively in one situation.
  • Embrace a pressure moment.
  • Reflect on balance.

Your 7-day action plan

  1. Day 1

    Assess your drive.

  2. Day 2

    Raise a standard.

  3. Day 3

    Act decisively.

  4. Day 4

    Embrace pressure.

  5. Day 5

    Reflect on success.

  6. Day 6

    Consider balance.

  7. Day 7

    Reflect.

Outcomes to expect

What readers who apply this book can realistically take away from it:

  • Greater drive
  • Decisiveness
  • Comfort with pressure
  • Higher standards

Strengths and limitations

Strengths

  • Energizing
  • Insight into elite athletes
  • Intense motivation
  • Memorable

Limitations

  • Can be unhealthy
  • Anecdotal
  • Intensity not for everyone

Reflection questions

  1. What level are you?
  2. How do you respond to pressure?
  3. When do you overthink?
  4. What does balance mean to you?

About the author

Tim S. Grover

Trainer of elite athletes; author of Relentless.

Full profile and books

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As an Amazon Associate I earn from qualifying purchases.

Book details (title, author, year) are factual. Everything under the headings above is MindsetProdigy's own editorial analysis and interpretation, written to help you decide whether to read the book and how to apply it. It is not a substitute for reading the book itself. Last updated October 1, 2026.