Triathlon Coaching
Your Physiology.
Your Program.
Your Results.
Science-driven, fully individualised triathlon coaching that brings lab-level precision to every athlete in Australia, not just the pros.
Triathlon Coaching
Science-driven, fully individualised triathlon coaching that brings lab-level precision to every athlete in Australia, not just the pros.
Trusted by 400+ athletes
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Rachael took 22 minutes off her 70.3 time in just 6 months, highlighted by a 15-minute run improvement and nearly 3 minutes saved in transitions. She rose from 14th to 3rd in her age group and qualified for the IRONMAN 70.3 World Championships, a huge milestone that reflects her rapid rise through the field.
Lachlan delivered an exceptional breakthrough, securing a podium finish in his first-ever Ironman through mature pacing, strong bike execution, and a brilliantly controlled marathon. He also qualified for the Ironman World Championships on debut, something extremely rare at any level. On top of that, he improved his standalone marathon by nearly 5 minutes this year while averaging only 50 km per week, far below the 100+ km he once ran as a pure runner. His development in durability and efficiency has been enormous.
Rodney improved his 70.3 finish time by 12 minutes year-on-year, moving from 6:02 to 5:50. His run split alone improved by almost 20 minutes, dropping from 2:41 to 2:22, showing a huge leap in pacing and durability. He had completely stopped training after his previous Melbourne 70.3 and only restarted structured work 12 weeks before the 2024 race. And with his 2023 swim being significantly shortened, his true full-course improvement is even greater than the headline suggests.
After just 12 weeks of structured training, Riley won his M15-19 age group at Husky and finished 13th overall with a 2:14:22 Standard Distance performance. A massive early breakthrough and a sign of genuine long-term potential.
Before coaching, Jeremy was performing well at the club level, winning the B-Division Single Scull at Footscray Regatta and earning Male Champion at Footscray City Rowing Club. After beginning structured training, he stepped decisively into higher-level racing, qualifying for the Victorian State Championship Final in the Lightweight Men's Single, finishing 5th in the state with a 2k time of 7:47.98, and racing the A-Grade Single among some of Victoria's strongest scullers. A clear progression: B-division winner to club champion to state-level athlete to top-5 in Victoria.
Dylan delivered a major step forward at Melbourne 70.3, taking around 30 minutes off his bike split and about 9 minutes off his run compared to his previous 70.3 performance. The swim can't be compared due to the swim cancellation, but the bike and run gains alone resulted in a standout 4:10 finish, marking a huge lift in speed, strength, and competitiveness.
Zac produced a massive breakthrough over the marathon distance, running 4:11 and taking 27 minutes off his previous best in just 6 months. A clear sign of rapid improvements in aerobic capacity, pacing, and overall durability, with plenty more upside still to come.
Zack dropped an 11-minute personal best in a sprint-distance triathlon after just three months of structured training, achieved without a taper and straight out of a normal training week. Zack is one of the most consistent athletes on the roster and is a great example of what can be achieved.
Craig came in from pre-written programs, unsure about the value of 1:1 coaching. After just 10 weeks of structured training, he took 25 minutes off his 70.3 time at Geelong, going from 5:12 to 4:47. His bike split dropped from 2:35 to 2:23, nearly 12 minutes faster. His run went from 1:57 to 1:44, nearly 13 minutes faster. He finished 22nd in his age group after placing 75th the year before. One of the most consistent athletes on the roster and a clear example of what focused, individualised coaching can produce in a short timeframe.
Across a single race season, Kyle cut 15 minutes and 22 seconds from his 70.3 time, including a 7-minute faster bike and 4-minute faster run. He achieved this while self-coaching using the Tremayne Performance Method, earning his professional licence just 10 months after his first race, and after only 2 years of total training. A rapid rise built on discipline, structure, and the same methodology now used across the Tremayne Performance athlete roster.
The Problem
You have had the generic training plan that ignores your schedule, your body, and your life outside of triathlon. You have had the coach who takes days to reply, never looks at your data, and sends the same sessions to every athlete on their roster. You have done the work and watched your race results stay exactly the same.
The issue is not your ability. It is not your commitment. It is that your program was never built around you. Your heart rate zones were calculated from a formula instead of tested. Your training weeks were copied from a spreadsheet instead of designed for your physiology. And when life got in the way, nobody adjusted a thing.
We do things differently. Every athlete gets a structured, periodised program built from their own threshold data using DFA a1 analysis and heart rate variability testing. You get direct access to your coach, weekly communication, and a plan that adapts when your work, your family, or your body needs it to. Training fits your life, not the other way around.
This is personalised triathlon coaching built on your physiology, not a template.
The Process
A systematic 6-phase approach that takes you from where you are to where you want to be, with precision at every step.
Build volume safely, prevent injury, and establish schedule consistency that fits your life.
Establish your individual heart rate values to personalise every single workout from day one.
Develop foundational endurance across swim, bike, and run with structured progression.
Advanced testing using DFA a1 analysis to build your unique physiological profile.
Fully individualised training with 6–8 week testing blocks to track progress and adapt.
Targeted programming optimised for your key events. Arrive at the start line ready to execute.
The Edge
Lab-level physiological precision. No lab required.
Until now, truly individualised training thresholds required expensive laboratory testing. Equipment and expertise reserved for professional athletes with professional budgets. That's no longer the case.
Using DFA Alpha1 (Detrended Fluctuation Analysis), we analyse your heart rate variability during exercise to identify your individualised HRVT1 (aerobic threshold) and HRVT2 (anaerobic threshold), non-invasively, in your own training environment.
This isn't estimated. It's not based on population averages. It's your physiology, measured directly. And it changes everything about how your training zones are set.
Your aerobic threshold (HRVT1) and anaerobic threshold (HRVT2) identified through DFA a1 breakpoint analysis. These two thresholds define your training zones. No two athletes share the same thresholds, so no two programs should share the same zones.
Monitor threshold shifts over time. As your fitness evolves, your training zones evolve with it automatically.
Access the same level of physiological insight that was previously reserved for elite, fully-funded professionals. Now available to every committed athlete.*
Two athletes, same age, same max heart rate. Completely different thresholds. This is why generic zones don't work.
Large aerobic base with compressed upper zones. This athlete can absorb significantly more volume below threshold.
Narrow aerobic base with more evenly distributed zones. Needs careful intensity management to avoid chronic overreaching.
Same formula-based zones would prescribe identical training for both athletes. DFA a1 reveals what generic calculations cannot: these athletes need fundamentally different programs to improve.
Grounded in peer-reviewed research
*Subject to compatible HRV recording equipment
Your Coach
Head Coach, Tremayne Performance
I wasn't a gifted athlete. I spent years chasing team sports with nothing to show for it. I couldn't crack a game in the seconds during football. I tried everything and excelled at nothing. Then in 2021, I found triathlon, and something clicked. I fell in love with the physiology, the structure, the idea that you could engineer performance through smarter training. By 2023, I had my professional license. Today I coach triathletes across Australia.
That journey taught me something fundamental: for my first twelve months I trained using generic zones and cookie-cutter programs that weren't built for my physiology. I was doing the work but not getting the results. The moment I learned to individualise my program, to train based on my actual thresholds rather than formulas, everything changed. That principle of individualisation is now the foundation of every program I write.
What sets this apart from other coaching services is simple: you're not a number on a spreadsheet. You get direct access to me. We talk, we review, we adjust. Whether that's a quick WhatsApp message or a proper check-in call, I'm invested in your progress because I genuinely care about the outcome.
What You Get
Everything you need to train with purpose and confidence.
Your aerobic and anaerobic thresholds identified using DFA Alpha1 heart rate variability analysis. Lab-grade precision used to build your unique physiological profile and set every training zone from real data, not formulas.*
Structured workouts delivered directly to your device. Syncs with Garmin, Wahoo, and all major platforms so every session is ready to go when you are.
WhatsApp communication Monday to Friday plus optional check-in calls. Real conversations about your training, not automated replies or unanswered emails.
Programs written in 6 to 8 week blocks with built-in testing to track progress. Your plan evolves as your fitness develops, not just when your subscription renews.
Detailed pacing plans, nutrition protocols, and event-day strategy tailored to your race distance and your data. You will know exactly what to do from start to finish line.
Every discipline is planned, structured, and progressed. Not just a run program with a bike plan bolted on. All three sports are built together with your race goals in mind.
Your training data is reviewed every week. Sessions are adjusted based on what the numbers say, not what a template says. Progress is tracked, measured, and acted on.
No commitment past the first 10 weeks. After that, continue weekly at $80/week and cancel any time with one week's notice.
Investment
No tiers. No upsells. Every athlete gets the full service.
Starting with a 10-week initial block at $1,200 AUD. No commitment past 10 weeks.
+ GST for Australian residents
*Subject to compatible HRV recording equipment
Select whether you are Australian or international for GST purposes. This will take you to the payment page.
Pay the initial 10-week commitment to lock in your spot.
Your onboarding email includes a welcome video, onboarding form, booking link for your onboarding call, and my WhatsApp number. Check spam if needed.
In the days following, you will be given access to further Tremayne Performance onboarding and educational content.
Stop guessing. Start progressing. Get in touch and let's build your personalised triathlon training programme.