Relentless Road

At his heaviest, Mac weighed 530lbs. Through relentless effort, and sharing his fears, struggles and triumphs with others, he lost an amazing 300lbs and inspired thousands of people across the country with his extraordinary adventures. Sadly, he would regain 250lbs in the ensuing years. Now Mac joins up with Tim Scrivner, founder of Jailbreak Race Events, for the Relentless Road Podcast, a social experiment in the power of positive peer pressure, and possible public humiliation, as he endeavors to lose the weight, reclaim his health and inspire others as he embarks on new adventures. “Start by doing what’s necessary; then do what’s possible; and suddenly you are doing the impossible.” – St. Francis of Assisi
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Relentless Road



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Apr 12, 2018

Did your city make the 2018 list of fattest cities in the US? Mac continues to lose weight and discuss new goals.

Mar 23, 2018

Mac embarks on a new training routine and loses 4 lbs.  Tim discusses life without Adderall and the effect of diet on energy levels and his ability to focus.

Mar 19, 2018

Mac sticks to his eating plan over Spring Break but doesn't see movement on the scale. Jennifer and Mac compare their fitbit activity logs and Tim challenges Mac on his lack of activity.

Mar 9, 2018

Mac struggles to get back to his pre-Christmas weight. Now he faces a spring break that could potentially set him back further.

Mar 2, 2018

Is fear contagious? Where is sugar hiding? Mac loses another 4 pounds and the crew discusses the many names, and many places, of hidden sugar.

Ken D Berry MD

Feb 23, 2018

Why do we do what we do? How do we change our habits so we can achieve our goals? Mac discusses steps he has taken to change unhealthy habits and habits he still needs to establish in order to reach his goals.

Feb 16, 2018

Do you weigh yourself everyday? Should you? How does your "identity" impact your ability to obtain your goals? Mac has his weekly weigh-in and confesses some of his YouTube obsessions.

Feb 12, 2018

Leanne Splawn joins the podcast and talks about her lifelong struggle with obesity. Overweight at 9, more than 200lbs at 12, and weighting more than 300lbs by her early 20's, she has begun the process of overcoming obstacles and environment as she has lost more than 90lbs.

Feb 2, 2018

Mac hits a 34 lb "bump in the road" and confronts his mental battle to stay positive as he struggles to stay consistent on his path to sustained weight loss.

Dec 6, 2017

Mac updates his progress and reflects back on the year's highs and lows as he attempts to lose more than 250lbs for the second time.

Oct 6, 2017

Does your personality determine how you respond to challenges? Does it make a difference in how you should approach your goals?

Sep 22, 2017

A new documentary contrasts today's physical education in schools with the PE program at LaSierra High 50yrs ago. Mac is now down 100lbs!

Sep 7, 2017

In the wake of Hurricane Harvey, the crew discusses the concept of "being fit to be useful". If no help is on the way, do you have what it takes to rescue your family and neighbors?

Aug 24, 2017

Mac is back down to his pre summer weight and the crew discusses moral obligations, excuses and recycling.

Aug 11, 2017

Can you be fat and happy?  Can you be happy without being happy with your weight?  Mac loses another 6 lbs and Tim gives up Copenhagen.

Aug 4, 2017

Tim talks about how the death of his mother and sister eventually led to his creation of Jailbreak Race Events.  Mac's summer slump continues, even gaining weight in the past few weeks.  Tim and Mac discuss his summer weight gain and Tim loses his sh*t.

Aug 2, 2017

Rachel joins the podcast and talks about seeing her brother, and hero, disappear inside the weight of 500+ pounds. She discusses the pain and helplessness of witnessing his physical and emotional decline, as well as the joy and pride of his triumphs.

Jul 21, 2017

Mac discusses his struggle to keep weight loss momentum during the summer.

Jun 24, 2017

Jessica McDonald joins the podcast and talks about life with a 530lb husband, a 220lb husband, and all the weight in between.

Jun 15, 2017

Jeff Walburn received a liver transplant almost 10 years ago. Jeff joins the crew and talks about honoring the life of his organ donor by living each day to the fullest.

Jun 11, 2017

Mac recaps his progress over the past six months and decides to make another attempt at a ketogenic diet.

Jun 1, 2017

Special guest Jerome Gonia joins the crew as Mac hits the six month mark on his quest to lose more than 200lbs, for the second time.

May 26, 2017

Tim goes for a 42 mile run/walkabout for his 42nd birthday and uncovers the depth of his hypocrisy.  Mac has his last weigh in before his six month goal date.

May 19, 2017

Mac weighs in with twelve days to go on his quest to lose 100 pounds in six months.  The crew also discusses procrastination and the role it plays in their journeys.

May 12, 2017

Mac weighs in after a week in South Padre for the Jailbreak Beach Escape.  The crew recaps Jailbreak week and muses on McDonald's, Buc-cee's and the Jailbreak hangover.

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