Western Australia 140.6 Triathlon Guide
Prepare Well. Race Strong.
Finish Proud.
Completing a long-distance triathlon is one of endurance sport's greatest achievements. After months of preparation, race day is your opportunity to put it all into practice.

About This Guide
Why We Created This Guide
Preparing for a long-distance triathlon is about much more than simply reaching the finish line. Every training session builds confidence, but success on race day also depends on the smaller details - choosing comfortable clothing, planning your nutrition, preparing your equipment and arriving organised.
After spending six to twelve months preparing, the last thing you want is uncomfortable apparel, forgotten gear or unnecessary stress. This guide brings together practical advice to help you focus on the experience.
Inside you'll discover:
✓ Preparing for hot-weather endurance racing
✓ Choosing lightweight race-day apparel
✓ Typical Western Australian conditions in December
✓ Clothing for the marathon run leg
✓ Personalising your race-day apparel
✓ Packing for race weekend
✓ Custom teamwear for clubs, charities and corporate teams
✓ Recovery after the finish
Event Overview
Race Distances at a Glance
| Leg | Distance |
|---|---|
| Swim | 3.8 km |
| Ride | 180 km |
| Run | 42.2 km |
A long-distance triathlon is as much a test of planning and consistency as it is of fitness. Nutrition, pacing, hydration and comfortable clothing all become increasingly important over a full day of racing.
The Event
Why Athletes Love Racing in Western Australia

Western Australia has earned a reputation as one of Australia's premier destinations for long-course triathlon. Athletes appreciate the welcoming community, coastal scenery and the opportunity to race in a location that rewards months of dedicated preparation.
Many competitors extend their trip into a holiday, travelling with family, training partners or club members. Crossing the finish line after 226 kilometres of racing creates memories that last a lifetime.
Conditions
Typical Western Australian Conditions in December
December racing in Western Australia often brings conditions that reward smart preparation. As the race progresses, particularly during the marathon, clothing comfort becomes increasingly important.
☀️ Warm morning temperatures
🌡️ Hot afternoon conditions
☀️ Strong sunshine
🌬 Moderate coastal winds
💧 Low humidity compared with eastern states
☀️ High UV exposure
Dressing for an All-Day Endurance Event
Unlike shorter races, a long-distance triathlon places demands on your clothing for many hours. The apparel that feels comfortable during the first hour also needs to perform after eight, ten or even twelve hours of racing.
Experienced athletes generally choose lightweight clothing with excellent moisture management, minimal seams to reduce friction and fabrics that remain comfortable when wet.
Every item should be thoroughly tested during long training sessions before race day.
Race Day Clothing
Choose With the Marathon in Mind
The final 42.2 kilometres are often where your tri suit really matters.
After a 3.8 km swim and 180 km on the bike, your tri suit needs to remain comfortable, secure and breathable all the way through the marathon.
Many athletes choose:
✓ Seamless construction to reduce friction and chafing
✓ Full-length lockable front zip for ventilation during hot conditions
✓ Silicone arm and leg grippers to keep the suit securely in place
✓ Long-distance tri chamois designed for extended time on the bike
✓ Integrated chafe guard for additional neckline comfort
Comfort should always take priority over appearance.

Preparing your race equipment the night before helps reduce stress and lets you focus on enjoying the experience.
Performance Apparel
Shop Triathlon & Running Apparel for WA
Lightweight, moisture-wicking apparel designed for all-day endurance racing in hot conditions. Available for men and women.
Make It Yours
Personalise Your Race-Day Apparel
Celebrate your Western Australia long-distance triathlon with personalised performance apparel. Selected SUB4 products can be customised with your name, nickname, team name or charity name.
Personalisation helps supporters identify you on course and creates a memorable keepsake after race day.

Groups & Clubs
Racing with a Club, Charity or Corporate Team?
SUB4 specialises in custom-designed performance apparel for triathlon clubs, running clubs, corporate teams, charity organisations and more. Our experienced Australian design team can help create apparel that reflects your team's identity while delivering performance-focused comfort over a full day of racing.

More in This Guide
What's Coming Next
This guide continues with detailed advice on:
SUB4 is an independent Australian performance apparel brand. This guide is intended as general preparation advice for endurance athletes. SUB4 is not affiliated with, endorsed by or sponsored by any event organiser unless expressly stated. Event names and associated intellectual property remain the property of their respective owners.