Nathan Martin










Change Fitness Founder, Endurance Sports Coach & Co-founder of The Martin Charitable Trust

Nathan Offers

Endurance Coaching 1 on 1 100% Support – Online & Premium Options

Nathan works with Swimmers, Road Cyclists, Mountain Bikers, Runners, Duathletes, Multisporters and Triathletes. Nathan’s approach is that he will work together with you towards achieving success. Nathan delivers a words class coaching service 100% tailored to you sporting goals and your busy lifestyle. Most of Nathan’s athletes work full-time and/or run their own businesses and also have families. Working 1 on 1 with Nathan you can live anywhere in the world, Nathan has athletes both in NZ and overseas and is in touch with them all weekly. Nathan will make sure you are making the most of your precious training time and present you with a pathway to your goals in a very clear and precise way using some of the latest scientific tools, methods and research, which Nathan also conducts himself. Nathan works with athletes of all levels and loves it! Working with Nathan as your personal coach your programme will be reviewed, analysed and adapted weekly. 

Read athlete testimonials below…

COST: weekly subscription (no minimum period)


$50NZD per week incl. GST “Driven through Training Peaks and Email”

LIMITED SPACES REMAINING please send Nathan a message to secure your spot!


$92NZD per week incl. GST “The most Supportive Coaching service Nathan offers”

LIMITED SPACES REMAINING please send Nathan a message to secure your spot!


If you are a current Member of Nath’s Endurance Training Hub you can ask Nath any questions or highlight any topics you want to know more about. Click the button below…



Over 10+ years experience, Coaching, Training and Supporting everyday people to achieving life changing goals

New Zealand Institute of Sport – Personal Trainer

REPS registered Personal Trainer

Top 5 Finalist – NZ Personal Trainer of the Year 2014

NZ Fitness Award Winner 2014 (contribution to professionalism and standards)

Precision Nutrition L1 (current)

Triathlon Achievements

9 x Ironman Finisher (2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018)

Ironman Personal Best time: 9:33:46 (2018)

Ironman World Championships (Kona) Qualifier (2018)

NZ age group triathlon representative (2012, 2017, 2018)

Top 10 Age Group (35-39) ITU Long Distance World Champs, Canada 2017

Top 25 Age Group (35-39) ITU Standard Distance World Champs, Gold Coast, Australia 2018

Running Achievements

Half Marathon Personal Best 1:18:58 (2019)

Marathon Personal Best 2:51:22 (2016)

Cycling Achievements

Lake Taupo Cycle Challenge Personal Best 4:13:32 (2015)


Being a positive Role Model is something we all should take responsibility for. As we look for inspiration, others are also looking to us for inspiration. Nathan discovered this when he began his life changing journey back in 2009, when he decided he would complete the Ironman New Zealand.

Going from someone who was searching to find himself and having serious habits around drugs, alcohol and gambling Nathan decided to CHANGE and to do this he needed a big enough goal.

The Ironman triathlon (3.8k Swim:180k Cycle:42.2k Run) was a big enough goal. Going through the process of reaching this goal taught Nathan a lot about himself as well as overcoming many challenges Nathan learnt to plan, keep focussed, set smaller goals along the way and most importantly surround himself with people that believed in him. After crossing the Finish Line at the Ironman NZ in 2010 Nathan realised that he could do anything he put his mind to.

Nathan is a husband and father of two boys who now dedicates his life to helping others find their Finish Line… you don’t have to do and Ironman but you do need to FIND YOUR FINISH LINE. Let Nath help you find your purpose and most importantly inspire those around you!


BIG GOALS becoming a reality – Ronin Whelan

“Why did I choose Nathan Martin?… His belief for me never changed! I first met Nathan after my 2nd Ironman event back in June 2018 (IMCAIRNS) I was in the airport waiting for my flight home where he approached me out of interest. He sat opposite me and asked me what my goals was for the future, answering his question with my childhood dream I said “I wanted to race in Kona at the Ironman World Championship against Ironman’s top age group athletes.” I was expecting to get the same answer I always did… “That’s a big ask don’t you think?” But instead he smiled and said “I believe you can get to Kona” and he continued to break it down with the way he achieved it for himself,  for the first time in my life someone had taken the time to show me Kona was a more realistic goal than I thought, and took the time to show me the necessary things in order to achieve my goal, but without doubting me for a single moment he said I could get to Kona.

Nathan introduced me to a whole new world, he immersed me in the knowledge of consistency and the power of marginal gains within a big picture and how little things could become game changes. Before working with Nathan I had no experience with run dynamics, pacing, aerobic / anaerobic energy systems, power meter training, mental preparation and correct day to day nutrition and race fuelling. Within 3 months time we were able to address all of those areas an much more…

After 3 months of working with Nathan, waking up dormant skills, training consistently, following Nathan’s guidance and sticking to the plan I was able to lose the added 14kgs I had put on previously, to everyone’s surprise not only did I complete Ironman 2019 but I knocked a complete hour off my previous time with only 3 months working with Nathan.” We are going to get to Kona!

~ Ronin

First-time IRONMAN – Amanda Green

“I started training with Nathan in July 2018 having just completed a marathon. Whilst I was a confident runner I had no swim or cycling experience and needed some help if I was to achieve my goal of completing an Ironman. Nathan helped me through the next nine months with a structured programme that was flexible around work and life commitments and ensured I was ready for the big day. I achieved the goal and completed Ironman NZ in March 2019 with the day itself hugely enjoyable as I knew I was so well prepared.”

~ Amanda

Endurance CYCLIST – Nick Dunn

“I have had the pleasure of having Nath coaching me for the past three years of my cycling journey – and have only good things to say about his (and the wider Change Fitness crew’s) services! Three years ago, after getting into cycling and trying a few different disciplines of road riding, I decided that endurance cycling was my thing – and something I wanted to commit to pursuing, even if I had only ever ridden short distances.

Fast forward to today, and Nath has (and continues) to help me achieve results that I never would’ve thought possible. In the time I have worked with Nath, I have gone from wondering if I could ever ride 100km, to competing in organized events (Lake Taupo – Enduro – 320km, K2 Coromandal – 185km, Graperide Magnum – 202km), as well as many other 100/200/300km non-competitive weekend rides throughout NZ. This year, I will be returning to the Lake Taupo to take on the Maxi Enduro (640km) thanks to the coaching support from Nath”

~ Nick 

Non-runner to RUNNER – Koshick Ranchhod

“I have had Nathan as my coach for about a year, I initially heard about Nathan through friends. I asked Nathan to help me with running and what I have experienced since working with Nathan is a journey of never ending improvement. Nathans approach has been tailored to my needs, he has a great balance of using science and experience to get the best out of me. As a coach he knows just what I need to progress to the next level. Nathan also has a knack of getting you outside your comfort zone and he leads by example which keeps me motivated. The amount of time and effort he puts into his clients reflects the awesome community he has built at Change Fitness.”

~ Ko

A dream come true, I’m REPRESENTING NZ – Kirsty Bullard

“Since starting 1 on 1 coaching with Nathan I have gone from strength to strength. Having started Triathlon only 2.5 years ago he has helped me hone my skills on all 3 disciplines. I went from being a runner that only had one pace to a runner that now understands different tempo’d runs and their benefits in training. This has seen me constantly be able to achieve PBs in 5km, 10km and ½ marathon distances.

With Nathan’s coaching I was also able to achieve NZ age group selection for the NZ Tri team travelling to Spain in April this year. Something I never imagined I would be doing.”

~ Kirsty

Taking PERFORMANCE to the Next Level – Narf Taru

“I have been working 1 on 1 with Nathan and I’m absolute thrilled with not only his wealth of knowledge and professional services but the personal touch that he puts into working together. Our weekly contact provides opportunities for reviewing and planning our goals from the previous and forthcoming week. Nathan has definitely been the catalysis for taking my Performance to the Next Level.”

~ Narf

Making a COMEBACK – Mike Hunn

 “In the middle of 2018 I had open heart surgery. I always knew I wanted to get back to my normal level of fitness (and then some) asap. In early 2019 I enlisted Nathan to help me fine tune my training and I gave a fairly unrealistic list of goals. The first goal was a sub 3 hour Karapoti Classic. With only 6 weeks training and 7 months after surgery, I achieved a 3:05 with a puncture. Ride time was under 3 hours. Stoked!

Since then, as I slowly regain my fitness, Nathan has continually kept track of my sessions and results and has been absolutely pivotal in my gains. I’m excited about what the future holds as Nathan helps me to conquer my goals and PR’s.”

~ Mike

PHONE 027 532 1485


If you are a current Member of Nath’s Endurance Training Hub you can ask Nath any questions or highlight any topics you want to know more about. Click the button below…