Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Triathlon · Middle Distance (70.3)
IRONMAN 70.3 Western Sydney 2027
- Race day
- Sunday, 2 May 2027
- Location
- Penrith, New South Wales
- Distance
- 113 km total
1.9km swim 90km bike 21.1km run
IRONMAN 70.3 Western Sydney: 2 May 2027, Penrith. An Olympic regatta lake swim, a two-lap country bike and a run under the Blue Mountains.
234 days to go
Key Race Metrics & Overview
- Date
- Sunday, 2 May 2027
- Venue
- Sydney International Regatta Centre, Penrith
- Distance
- Middle Distance (70.3) — 113km total
- Start Time
- A pontoon start in the main competition lake for all age-group and team athletes. Exact times are confirmed during race week.
- Draft-Legal Bike
- No — non-drafting
- Cut-Off
- From your start time: 1 hour 10 minutes for the swim and 5 hours 30 minutes for the bike, with riders who miss it collected by the sag wagons. In both cases remaining team members in transition are released onto the next leg at that point.
Also this weekend
Team relay and aquabike categories run alongside the individual race.
Leg 1 of 3
Swim — 1.9km
A one-lap rectangular course in the sheltered, man-made lake built for the 2000 Olympics. It starts in front of the grandstand from a pontoon, passes the grandstand again on the way back, and exits under the bridge straight into transition. If open water makes you nervous, this is about as controlled as a 1.9km gets.
- Venue
- Penrith Lakes — Sydney International Regatta Centre
- Elevation gain
- No official figure published — see notes above
- Surface
- Man-made lake — flat, sheltered, no current.
Wetsuit: The organiser publishes an average water temperature of 19°C, which in early May is usually comfortably wetsuit-legal. Confirmed on the day against the measured temperature.
Leg 2 of 3
Bike — 90km
Two laps through open country under the Blue Mountains. Out of transition along the regatta and left around the Penrith Whitewater Stadium, then out of the precinct via McCarthys Lane and left onto Castlereagh Road, past the 15km mark and Godolphin Stables to a U-turn. Left into Brooks Lane, past 30km on Wilshire Road, left onto Jockbett Road and onto The Driftway for two more U-turns, then back the same way to Castlereagh Road and the precinct. The second lap starts at Castlereagh Road and McCarthys Lane.
- Venue
- Castlereagh Road and the Penrith countryside
- Elevation gain
- No official figure published — see notes above
- Surface
- Sealed road — smooth and fast, with technical turns.
Non-drafting
Leg 3 of 3
Run — 21.1km
Laps at the foot of the Blue Mountains. From transition the course crosses the bridge, turns right at Car Park Gate A and heads north along Old Castlereagh Road with the mountains to the west, to a northern turnaround, back past the first aid station and down to the southern bank of the SIRC lake for a U-turn and another lap. On the third approach to the southern U-turn, runners continue straight instead, for a final lap around the competition lake itself.
- Venue
- Sydney International Regatta Centre and Old Castlereagh Road
- Elevation gain
- No official figure published — see notes above
- Surface
- Sealed path and road — flat.
Wetsuit outlook
Will you need a wetsuit at IRONMAN 70.3 Western Sydney?
Water temperature at inland lake in May has typically been 17.7°C, ranging from 16.9°C to 19°C in eight of every ten years. Against IRONMAN / 70.3's thresholds for this race's 1900m swim, that means:
Wetsuit optional — and recommended
Up to and including 24.5°C (76.1°F) every athlete may wear a wetsuit and remain eligible for awards.
What would have happened in each of the last 16 years
- Optional (recommended)16 of 16
What the organiser says
The organiser publishes an average water temperature of 19°C, which in early May is usually comfortably wetsuit-legal. Confirmed on the day against the measured temperature.
Estimated from air-temperature history — no direct measurement of this water exists, and small, shallow venues tend to run a degree or two warmer than shown. The official temperature is taken an hour before the start, and only that reading decides the rule on the day.
Transitions
Everything is inside the Regatta Centre. The swim exits under the bridge straight into transition; the bike returns through the same point it exited; the run exit is at the bottom corner with a drink station on the way out.
IRONMAN 70.3 Western Sydney Split Calculator
IRONMAN 70.3 Western Sydney Split-Time Calculator
Enter your own swim, bike and run pace to project a real finish time.
Projected Finish Time
5:38:03
Racing a different distance? Try the generic split calculator or the swim pace calculator.
Where IRONMAN 70.3 Western Sydney starts and finishes
These are the start and finish points, not the route. Verus doesn't hold course files for this race, and drawing a line between two pins would be a guess you might end up training on. The official course map is the one to use: view it on the organiser's site .
What you can qualify for
IRONMAN 70.3 races award age-group qualifying slots for the IRONMAN 70.3 World Championship, published per race and per age group before race day. This race is also Flex90 eligible.
Entry & Ballot
Direct entry summary
Entry is direct through IRONMAN at tiered pricing. The race is Flex90 eligible.
Ballot policy
No ballot — entry is direct and tier-priced.
Age requirement
Not published for this event — check the official race website.
Charity Places
Not published for this event — check the official race website.
Race Day Info & Checklist
On the day
- The whole race is at the Sydney International Regatta Centre, about fifty minutes from the Sydney CBD by road — swim, both transitions, run and finish in one venue.
- The swim is in the purpose-built Olympic rowing lake, which makes it one of the most controlled and least intimidating 70.3 swims anywhere.
- A pontoon start for all age-group and team athletes.
- The final run lap goes around the competition lake itself rather than repeating the road section.
- Flex90 eligible, which gives more flexibility on changing your entry than a standard registration.
- On-course fuel, per the official 2024 Athlete Information Guide, is PURE Sports Nutrition Electrolyte and Maurten Energy Gels/Bars — bike aid stations are roughly every 20km, run aid roughly every 2km.
- Unlike most IRONMAN races, there are no transition bags here — all bike and run gear is laid out directly at your bike on race morning, and bags or tubs left in transition are removed.
- This race hosts the NSW Long Course State Championships and doubles as a 2025 World Triathlon Multisport World Championship (Pontevedra, Spain) qualifying event. A free 5-minute post-race massage is available, plus free minor bike mechanics on the Saturday before.
- Enter and exit via Gate C off Old Castlereagh Road only.
Checklist
- A wetsuit — around 19°C in early May is comfortably legal in most years
- A bike plan for a fast course with technical turns rather than hills
- Warm layers for the wait; Penrith in early May is genuinely cold at dawn, colder than coastal Sydney
- Gear packed to the published transition process
- A run plan that knows the third southern U-turn is where the pattern changes
Transport, Spectating & Where to Stay
Transport
Penrith station is on the Sydney Trains network, about an hour from Central, and roughly 10km from the Regatta Centre — a taxi or lift at that end. Most athletes drive; it is about fifty minutes from the CBD.
Parking is inside the Regatta Centre precinct, which the organiser describes as the point of the venue.
Closures along Castlereagh Road, Old Castlereagh Road, Brooks Lane, Wilshire Road, Jockbett Road and The Driftway.
Spectator guide
The grandstand for the swim start and finish, transition, and the lakeside run — all within the same precinct.
You do not need to move at all. The Regatta Centre was built to be watched from, and the organiser leans on that.
Where to stay
Penrith
+ Closest accommodation to the Regatta Centre, on the train line from Sydney, and priced well below the city.
– Still about 10km from the venue, so you need a car or a lift on race morning.
Sydney CBD
+ Everything, and a fifty-minute drive out on race morning if you are already visiting.
– That fifty-minute drive starts before dawn.
The lower Blue Mountains
+ Glenbrook and Springwood are close, quiet, and a pleasant base if you are staying a few days.
– Winding road down to Penrith in the dark.
Frequently Asked Questions
When is IRONMAN 70.3 Western Sydney?
Sunday 2 May 2027, at the Sydney International Regatta Centre in Penrith, about fifty minutes from the Sydney CBD.
Where is the IRONMAN 70.3 Western Sydney swim?
In the man-made Olympic rowing lake at the Regatta Centre — a sheltered, one-lap rectangular course starting from a pontoon in front of the grandstand. It is one of the least intimidating 70.3 swims anywhere.
What are the IRONMAN 70.3 Western Sydney cut-offs?
From your start time: 1 hour 10 minutes for the swim and 5 hours 30 minutes for the bike, with riders who miss it collected by the sag wagons.
Is IRONMAN 70.3 Western Sydney a good first half-distance race?
It has the elements that usually make one: a sheltered, controlled lake swim, a flat and smooth bike course, a flat run, and everything in a single venue. The main thing to prepare for is the cold at dawn in early May.
How many laps is the IRONMAN 70.3 Western Sydney run?
The road section repeats between the northern turnaround and the southern U-turn, and on the third approach to that U-turn runners continue straight for a final lap around the competition lake itself.