Change Fitness Coaching is a family-run fitness coaching business based in Gracefield, Lower Hutt, started in 2014 by Nath and Rose with the vision of helping people move forward towards their event goals. The business is built around helping clients "Find Your Finish Line," and states it has shared in over 1,000 finish line moments with clients since starting out.
Coaching is led by Nathan Martin, an Official Hyrox Performance Coach who has coached Hyrox athletes from beginners through to World Championship qualifiers. Nathan's own athletic background includes being a 10x Ironman finisher, a multiple marathon and half marathon finisher, an Ironman and 70.3 World Championship age-group qualifier, and a World Triathlon age-group New Zealand representative. He holds Hyrox Foundation and Level 1 certification, is NZIS certified, REPS registered, TRI NZ accredited, and Ironman certified as a coach, and has been an endurance coach since 2012.
Change Fitness offers a range of services including 1-on-1 Hyrox coaching, 1-on-1 triathlon coaching, 1-on-1 run coaching, in-person personal training sessions, Hyrox training classes in Lower Hutt, and periodic Hyrox simulation events at their private training location.
Change Fitness Coaching started as a family business in 2014, when Nath and Rose set out with a simple vision: help people move forward towards their event goals. More than a decade on, the Gracefield, Lower Hutt-based business says it has shared in over 1,000 finish line moments with clients, built around the idea of helping people "Find Your Finish Line."
At the centre of Change Fitness is Coach Nathan Martin, an Official Hyrox Performance Coach who has guided athletes ranging from complete beginners to Hyrox World Championship qualifiers. Nathan's own competitive record speaks to deep first-hand experience: he's a 10-times Ironman finisher with a personal best of 9:33, an Ironman and 70.3 World Championship age-group qualifier, a World Triathlon age-group representative for New Zealand, and a multiple finisher of half Ironmans, marathons and half marathons. On the Hyrox side specifically, he holds an Open Solo PR of 1:03 and a Pro Solo PR of 1:10, alongside Hyrox Foundation and Level 1 certification. He's also NZIS certified, REPS registered, TRI NZ accredited, and Ironman certified as a coach, with endurance coaching experience dating back to 2012.
Change Fitness offers a spread of coaching options depending on what a client is training for. 1-on-1 Hyrox coaching is delivered fully online, meaning clients can work with Nathan from anywhere in the world — it includes a weekly Hyrox-specific training plan delivered via the Training Peaks app, personal voice-message feedback, ongoing WhatsApp support for questions during the week, and programme adjustments as needed. Clients also get fitness testing across running, Ski ERG and Row ERG to set training zones, video-based running technique and exercise movement analysis, and nutrition and fuelling guidance where relevant. This service is priced at $89 NZD per week, with limited coaching spaces available.
For those training for swim-bike-run events, 1-on-1 triathlon coaching covers everything from a first triathlon through to 70.3 and full Ironman distances, or simply chasing a new personal record. Runners can access 1-on-1 run coaching for distances from 5k up through ultra-marathons, whether it's a first event or an attempt at a new best time. For those who prefer face-to-face sessions, Change Fitness also offers personal training sessions in person with Coach Nathan.
Beyond individual coaching, Change Fitness runs Hyrox training classes in Lower Hutt, built around Hyrox-specific workouts designed to build fitness and conditioning. Throughout the year, the business also runs half and full Hyrox simulations at their private training location, giving athletes a way to test themselves under race-like conditions before the real event.
Change Fitness's testimonials point to a consistent pattern of client transformation. One client described starting unable to run a single kilometre in 2018 and has since completed more than a dozen half marathons and a full marathon. Another credited Nathan with supporting them to become an Ironman finisher despite having no prior cycling experience, praising his knowledge around nutrition, recovery and adapting the programme to their needs. Clients also frequently mention a strong sense of community — one described the "whanau approach" of the wider Change Fitness team as part of what makes the training experience work.
For anyone in the Lower Hutt area — or working with the online Hyrox coaching option from anywhere — Change Fitness offers a coaching pathway from complete beginner through to elite-level competition, backed by a coach with genuine racing pedigree across Hyrox, triathlon and endurance running.