About First42K

Discover the First42K story and the small team of running nuts that are 100% committed to helping you to fall in love with running!

Who’s behind it Why we started First42k Ambassador Team

Why we started First42K

From our experience, we know that your running journey is easier when you’re supported by coaches with substantial experience and have achieved the result you are after yourself.

It is so special helping others achieve personal bests, especially their first marathon!

When people hear that I ran 50 marathons in 50 days, I regularly get asked, “how did it feel to finish on day 50?”

I answer, “Day 50 was special, but day 49 was one of the most fulfilling days of my life. On Day 49, 3 of my friends, Sarah, Dean and Chris, ran their first-ever marathon. To be by their side the whole way and give them a big hug at the end was a moment that I will cherish forever. It was incredibly fulfilling knowing that through what I was doing in running the 50 marathons in 50 days, I had helped them believe that they too could run further than they ever have before and ultimately achieve their first 42k!”

We want to promote running as a team sport, not an individual sport.

In my first marathon, I experienced real generosity and the power of humanity when a man put his hand on my back and started pushing me up the hill at the 38km mark (The Tan Track).

I hit the wall. My legs were cramping severely, and I was starting to fall over, feeling dizzy. Mentally I knew that I was close to the finish line, but I didn’t know if I would make it. I was starting to fear that I wouldn’t.

Next minute the man gave me a zooper dooper he had picked up from an amazing lady who was there on the side supporting random runners. I smashed it down, and I instantly felt a little better. I slurred, “thank you, can I please have another one”. She gave me another zooper dooper which I know was pivotal In helping me get to the finish line!

I never learnt the names of those two people, nor did I get the opportunity to thank them, but they taught me that running is a team sport, not an individual sport. Without them, who knows, would I have completed my first 42k?

To allow others to reap the benefits of the greatest running coaches on the planet!

I was never the runner I am today until I met Jase and DJ. Since being introduced to them in September 2018, I have run approximately 100 marathons, 2 x 24-hour runs, won an 84km ultra-marathon across Bali and completed my first 100km race, the Oscars 100 Hut 2 Hut trail ultra-marathon.

I don’t say that to impress you, but to impress upon you that these guys are some of the greatest running coaches in the industry! I also feel stronger than ever, and I haven’t had a severe injury that has kept me out of running.

One of the most common questions I get asked is, “who is your coach? And can he or she coach me as well because I’d love to run marathons as you do?” Therefore I knew for others to have the success I have had with running, then they would need to be coached by Jase and DJ. I went to them with the idea of First42K, and they loved it! The rest is history.

Lastly, I’ve learned that there is so much involved in running a marathon. It is not just about running. It’s essential to know how to support yourself with optimal nutrition and hydration. You must train in a specific way that allows you to become strong enough to complete it injury-free.

Running marathons changed my life, making me happier, healthier and more confident.

We have built First42k to give you the answers to everything you need to know about how to run your first marathon so that you can experience the joy that comes with it and potentially have a life-changing experience as well!

Sean Bell
Co-Founder First42K

Who’s behind First42K?

With a wealth of experience in endurance running, coaching, sports nutrition, and building online learning platforms, our team has the technical skills and the real-world knowledge to help you fall in love with running, no matter your current level of ability.

Sean Bell First42K CoFounder running in Blue Run For Wishes singlet

Sean Bell

Sean is the driving force behind the First42K program and, as Keynote Speaker and Personal Trainer, uses his passion for running together with supporting causes and charities close to his heart to inspire others to chase their own dreams.

Sean completed his first marathon, The Melbourne Marathon, in October 2017 and from the moment he crossed the finish line, he knew that it was just the beginning of his running journey!

A year prior, Sean’s good friend and football team-mate passed away to an unexplained death at 18 years old. His shock passing broke Sean’s heart and inspired him to honour his friend by living each day as he did; with 100% effort, a big smile and a handshake for everyone he met.

After achieving his first marathon, Sean realised that it was often thinking of his friend in the tough training sessions that helped him push through the pain to complete his workouts.

In 2018, Sean began to connect his running to causes and charities close to his heart. Not only to draw greater inspiration with his running but to make a big difference for the people and families who need it most. At 21 years old, Sean ran 50 marathons in 50 consecutive days, raising $30,000 for The Compassionate Friends Victoria, a charity that supports grieving families after the death of a child. Since then, he has gone on to win the Bali Hope Ultra (an 84km race across Bali) in 2019 and has completed two separate 24-hour runs, both times raising thousands of dollars and significant awareness for the respective charities.

In 2022, Sean will partner with Make-A-Wish Australia to take on his biggest challenge yet, the ‘Run for Wishes’. Averaging approximately 60kms of running every day, this 14,000km run around Australia will take him 8-9 months to complete and help raise funds to make the wishes of critically ill children come true!

Jase Cronshaw Head Coach at First42k

Jase “Coach” Cronshaw

As the head coach responsible for the First42K training program Jase is an accomplished ultra-endurance athlete and the co-owner and co-founder of V&B Athletic Endurance Specialists.

As an accomplished endurance athlete, Jase has run thousands of kilometres in endurance events since completing his first ultra-marathon in 2012. He has raced in numerous countries including New Zealand, Australia and Bali.

Jase is passionate about fitness coaching and ultra-endurance events. Being actively involved in health and fitness initiatives within his local community, he coaches a free weekly run club and regularly volunteers at trail running events, helping people discover the same enjoyment he gets from running.

David "DJ" Jones

David “DJ” Jones

A long-distance cyclist, endurance athlete and soft sand running specialist, DJ is the First42K resident wordsmith. He is also co-founder and co-owner of V&B Athletic Endurance Specialists.

DJ is passionate about using his love of endurance running and cycling events to help others achieve things they may have (like himself) previously thought impossible. He has raced in numerous countries including Australia, Bali, France, Italy, New Zealand, and Switzerland.

When he’s not out running or cycling ridiculously long distances DJ enjoys long moonlit walks along the beach and collecting small stray animals as ornaments for his charm bracelet.

Chloe McLeod

Chloe is the co-founder and co-owner of the Health & Performance Collective and as a passionate Sports Dietitian, Chloe is stoked to be part of the First42K team – to help people of all levels of experience to run their first marathon!

Chloe is an Advanced Sports Dietitian, Accredited Practicing Dietitian and an expert in gut health, food intolerances and sports nutrition.

Among her many achievements, including the First42K nutrition program, Chloe created a world-class online course, The FODMAP Challenge, helping individuals identify gut intolerance symptoms, and is the lead author of the book ‘Anti-Inflammatory Eating’.

Kate Running Yoga Guru at First 42k

Kate Hall

Kate is the founder and owner of the Pure Hot Yoga and is the First42K resident Yogi. She teaches, practices and learns, and loves to share and create! Yoga is her path, Kate is all about balance on and off the mat.

Kate stumbled by yoga some 18 years ago, it was love at first sight.

When she’s not spending time teaching she enjoys a glass of wine, loves chocolate and anything sweet, a chef by trade she doesn’t mind playing in the kitchen but now days prefers to be cooked for!

She encourages her students to enjoy the journey of yoga rather than focus on the destination. She believes, as a teacher we learn as much from our students as our students learn from us!

Ambassador Team

From young to young-at-heart, beginners to professionals, the First42K Ambassador Team is a diverse community of runners united by their passion for running and their belief that running benefits the mind and the body.

First42k Ambassador Kailyn Brazier

Kailyn Brazier

Gold Coast, AUS

Running to me is freedom, connecting back to myself and doing what feels natural and easy, while also challenging me. It is being able to run in beautiful places, and it’s the ability to push my mind and body.

Favourite Distance


Favourite Event

Wings For Life

Road or Trail?


What’s one thing running has taught you?

Running has taught me I can do more than I think I can!

What motivates you?

I strive to be the best version of myself every day; I love helping others achieve what they are passionate about.

What are some of your achievements?

I am a Personal Trainer. I’ve been training people now for five years and loved every minute of it! I’ve run five half-marathons, and I’m excited to take on my first marathon with First42K.

Tips for anyone joining First42k

Now is the time to invest in yourself! Just start because the sooner you do, the sooner you will get stronger. Be kind to yourself and your body, and rest when you need. Take the pressure off yourself by following the program and trust that the experts have your back to help you achieve your running goals!

First 42K Ambassador - Nikki Langman

Nikki Langman

Melbourne, AUS

When I run regularly, I feel better equipped to handle everyday challenges. I started running at age 40 to support my mental and emotional wellbeing. I have struggled with anxiety for most of my life and tried countless solutions to manage strong, unproductive emotions. Running works for me.

Favourite Distance


Favourite Event

Los Angeles Marathon

Road or Trail?

Road. I’m a city girl. I love the concrete jungle. But in a perfect world, I’d love to do a bit of both.

What’s one thing running has taught you?

PATIENCE!!! Nuff said. Physical fitness is a great bonus and confidence booster, too.

What motivates you?

Running gives me a sense of empowerment, pride and mental fortitude. That feeling of, “Wow, if I can do THIS, what else can I do?”

I am motivated by two things:

  1. Measurable and tangible ways to track my progress.
  2. Creating personal trust – namely, that I can put myself in a challenging situation (like running a marathon) and trust myself to do the work to achieve that goal.

Run all 6 world majors. And, the Dopey Challenge at Disneyworld in Florida (The Dopey is 5, 10, 21, 42 on 4 consecutive days. Serious bling, too.)

What are some of your achievements?

In my relatively short time as a runner (less than four years), I have run 23 races of varying lengths – including three marathons and one ultra. Twice, I finished in the Top Ten for my category. And, I have learned great lessons from each and every one of them. Los Angeles Marathon 2019 has been my favourite event ever. LA is my home so the entire course was ripe with memories and experiences and good times. Starting at Dodgers Stadium, Running by the Hollywood Sign, down Hollywood Blvd, Rodeo Drive, Kodak Theatre, the Chinese Theatre, Avenue of the Stars, and finishing at Santa Monica Pier. And the best part, my family (who all live in LA) cheering at the finish line. One of the best experiences of my entire life.

Tips for anyone joining First42k

What you will get from First42K is personalised attention and connection with a local running community. I have tried several apps and ‘customised’ training programs, but I never felt like the big-name apps were speaking to me, my fitness level, or my life commitments that require me to adjust my training program from time to time. First42K is superb. The plans are fully customisable, but real support is the accessibility to expert coaches and nutritionists, and the collective accountability of the group. If running a marathon, half-marathon, 10K, or 5K is on your bucket list, First42K will get you there, every step of the way.

First42k Ambassador Pete Kavanagh

Pete Kavanagh

Melbourne, AUS

Running gives me an outlet to get fit, clear my head and is an excellent sport for setting goals and achieving them. Most importantly, it is allowing me to impact others lives in an amazingly positive way which was my motivator for getting serious about running in the first place.

Favourite Distance


Favourite Event

Great Ocean Road Marathon

Road or Trail?


What’s one thing running has taught you?

Since becoming a part of the First42k team, running has moved from a solo sport to a more team-focused pursuit where I get great satisfaction seeing or encouraging someone else to achieve their goals. Doing this in an encouraging and friendly environment within a fantastic framework and program with great coaches has made me a better runner. It also allows me to set my challenges beyond what I ever thought possible.

What motivates you?

To have a body and mind capable of helping others through doing something I love is enormously satisfying and makes me determined to pursue running for a cause. Being able to run with a friend coming back from injury and seeing them recover and fall in love with running all over again makes me smile too.

What are some of your achievements?

The obvious answer to this would be my first marathon at age 60. Incredibly satisfying and rewarding for plenty of hard work and an excellent coach and training program. I’ve recently completed a David Goggins’ 4x4x48 Challenge, which I conceived to do with a friend. It was tough, gruelling and mentally more challenging than the 42k. It wasn’t about me but impacting so many lives due to what became a tremendous team effort.

Tips for anyone joining First42k

Understand your goals and have a plan beyond that.

Be committed to the program, whether that be 5k, 10k, half marathon, or a marathon, as it’s a running program that you will receive back what you put in, and in my case, a whole lot more. If you are looking for a program that is both personal and team-focused, then First42k is ideal. You are not just a runner or a number but someone who has distinct goals and abilities, which the program and its coaches realise.

Become a member of the First42K Ambassador Team

We welcome applications from people who love running as much as we do!

Applicants can apply at any time.

We’re on the lookout for people who are active run leaders in their community and share images with #first42k

Apply Here