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IRONMAN 70.3 Sunshine CoastTraining Plan & Race Guide 2026

Mooloolaba, AustraliaSeptember 13, 202670.3 mi — Half Distance2 min readPublished July 13, 2026
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01·Course Characteristics

The measure of Sunshine Coast

A blisteringly fast motorway bike leg meets a scorching, unshaded run over Alexandra Headland. Success on the Sunshine Coast demands strict pacing on the bike to survive the high solar exposure and repeated climbs of the half marathon.

Climate
24°C
Peak air · water 21-22°C · early spring conditions
Conditions
Exposed
Coastal headwinds on highway · high UV · zero run shade
Elevation
620 m
Bike gain · rolling motorway · 220 m run gain
Difficulty
6 / 10
A fast bike course is balanced by a challenging ocean swim and a hot, unshaded run featuring four climbs up Alexandra Headland.

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The ideal build for this course is 16 weeks, and you have 8. We'll compress the essentials into your remaining time, prioritizing the demands that matter most on this course to get you to the finish line.

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02·Course by Section

Swim · Bike · Run — the data & the tactics

01
Swim

Mooloolaba Bay Loop

Mooloolaba Beach
DISTANCE
1.9 km
FORMAT
Single-loop
WATER
Ocean
TEMP
21-22°C
WETSUIT
Optional

A single-loop rectangular swim starting in the protected waters of Mooloolaba Bay near Point Cartwright. While generally sheltered, ocean conditions can range from glassy to highly choppy. You will exit onto the beach and tackle a short run up stairs to reach the transition area.

02
Bike

Motorway Expressway

Sunshine Motorway
DISTANCE
90 km
LOOPS
2
ELEVATION
620 m
SURFACE
Smooth tarmac
WIND
Coastal headwinds

A fast, smooth, two-loop out-and-back course held on the fully closed Sunshine Motorway. Do not let the flat reputation fool you; the course features rolling hills with key climbs when transitioning onto the highway. The open coastal setting makes you highly vulnerable to strong, power-sapping headwinds.

03
Run

The Headland Loops

Mooloolaba Esplanade & Boardwalk
DISTANCE
21.1 km
LOOPS
2
ELEVATION
220 m
SHADE
None
PEAK TEMP
24°C

A scenic but demanding two-loop course along the coastal boardwalk and Mooloolaba Esplanade. You must ascend the steep Alexandra Headland Hill twice per lap, totaling four climbs from both sides. With virtually zero natural shade, the midday sun and high solar radiation will test your thermal limits.

03·AVG beginners' Training Timeline

From zero to the finish line

16 weeks

This 16-week progression is custom-calibrated for the Sunshine Coast's specific demands. It establishes a broad aerobic foundation before layering on muscular strength for the rolling motorway, progressing to heat and hill exposure to prepare your body for the four grueling climbs up Alexandra Headland in the midday heat.

Today · WK 0Race Day
WK 1–4

Aerobic Foundation

Build a consistent aerobic base with low-intensity volume to prepare your cardiovascular system.

WK 5–8

Strength & Rolling Power

Develop muscular endurance and resistance to rolling terrain with bike low-cadence work and hill running.

WK 9–12

Specific Build & Exposure

Simulate race conditions with longer brick workouts, sustained aero-bar efforts, and heat habituation.

WK 13–14

Peak & Intensity

Sharpen your top-end speed and race-pace efficiency on simulated rolling terrain.

WK 15–16

Taper & Sharpen

Reduce training volume significantly while maintaining intensity to arrive fresh and fully loaded with glycogen.

Adapts to your fitness, schedule & recovery every week.

Personalize this timeline

04·Race-Day Execution

Controlled aggression, start to finish

Weather & cooling

Prepare for a chilly 13-15°C dawn start that rapidly warms to 24°C with intense solar radiation. Use every run aid station to dump ice and cold water over your head and shoulders to actively lower your core temperature on the unshaded boardwalk.

Fuel & hydration

Maximize your fluid and sodium intake on the flat, low-technical bike course where drinking is easiest. The warm, dry conditions and exposed run demand an aggressive electrolyte strategy to prevent cramping and offset heavy sweat rates.

Pacing

Keep your effort strictly controlled on the motorway bike leg, preserving your legs for the run. Save your energy for the four brutal ascents of Alexandra Headland Hill, where over-eagerness on the first lap will lead to walking on the second.

Gear & logistics

Opt for deep-section wheels on the motorway but ensure you can handle coastal crosswinds. Book beachfront accommodation along the Esplanade early to ensure easy walking access to the swim start and transition area.

Frequently Asked Questions

What is the water temperature and wetsuit policy for the IRONMAN 70.3 Sunshine Coast swim?

Water temperatures in Mooloolaba Bay average around 21°C to 22°C (70°F to 72°F) in mid-September, making the 1.9 km single-loop ocean swim typically wetsuit-optional or wetsuit-legal for age-group athletes. The swim starts on Mooloolaba Beach near the sheltered Point Cartwright and finishes further down the beach, where you will face a short run up stairs to reach the transition area.

How hard is the IRONMAN 70.3 Sunshine Coast bike course?

The bike course is highly regarded as an ultra-fast, smooth, and flat 90 km two-loop route along the closed Sunshine Motorway. While it offers excellent speed, you will encounter about 620 meters (2,034 feet) of total elevation gain from rolling hills and the climbs transitioning onto the motorway. Additionally, the open highway setting highly exposes you to coastal winds, so maintaining aerodynamic efficiency is crucial.

What is the run course profile like for IRONMAN 70.3 Sunshine Coast?

The 21.1 km run consists of a scenic two-loop coastal course along the Mooloolaba Esplanade and the Alexandra Headland boardwalk. The primary obstacle is the steep Alexandra Headland Hill, which you must climb from both sides once per lap for a total of four times. This hill, combined with almost no natural shade and high exposure to the midday sun, makes pacing and heat management highly critical.

What weather conditions should I expect at IRONMAN 70.3 Sunshine Coast?

You should prepare for a cool morning starting around 13°C to 15°C (55°F to 59°F) during the swim, which quickly warms up to daytime highs of 23°C to 24°C (73°F to 75°F) under strong solar radiation. September is historically the driest month of the year with only a 13% chance of rain, but you can expect common coastal breezes on both the bike and run courses.

What is the best way to travel to IRONMAN 70.3 Sunshine Coast?

The closest airport is Sunshine Coast Airport (MCY), which is located just a convenient 15-minute drive from the race venue in Mooloolaba. Alternatively, you can fly into Brisbane Airport (BNE), situated about 98 km (a 1-hour and 10-minute drive) to the south, and utilize regular shuttle buses or Greyhound services. It is highly recommended to book beachfront accommodation along the Mooloolaba Esplanade early for easy walking access to transition and the swim start.

Your Personalized Plan

Stop guessing your intervals. Train for this course.

FE26 builds your plan around your Strava data, your real schedule, and the exact demands of IRONMAN 70.3 Sunshine Coast — then adapts every week to how you actually perform.

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