Hills Tri Series: Race 4 2025 was held on Saturday, 13 December 2025 at Sydney International Regatta Centre, Penrith.
About This Event
Australia's largest club races, offering something for everyone either starting out in the sport, looking to get fit and stay active, or wanting to push yourself with some healthy competition.
Events
Saturday 13 December
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Sprint Distance 750m swim / 20km bike / 5km run8am
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Aqua Bike Sprint Distance 750m swim / 20km bike8am
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12yo Distance 250m swim / 10km bike / 2.5km run8am
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Enticer Distance 250m swim / 10km bike / 2.5km run8am
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10-11yo Distance 100m swim / 5km bike / 1km run8am
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Aqua Run Sprint Distance 750m swim / 5km run8am
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7-9yo Distance 75m swim / 2.5km bike / 500m run8am
Quick Facts
- Date
- Saturday, 13 December 2025
- Terrain
- Lake swim / Flat sealed paths
- Location
- Sydney International Regatta Centre, Penrith
- Entry Fee
- Check official website for current pricing
- Difficulty
- Easy to Moderate (varies by distance)
- Start Time
- 8:00 AM
- Good for Beginners
- Yes - Multiple beginner-friendly options including Enticer distances and Aqua Run/Aqua Bike formats for those not ready for a full triathlon
Event Details
Course Description
Based at the world-class Sydney International Regatta Centre in Penrith, this aquathon and triathlon course offers a spectacular lakeside setting with calm water conditions ideal for swimmers of all abilities. The swim takes place in the regatta's pristine rowing course, providing protected conditions without currents or waves. The bike course utilises the flat, purpose-built paths surrounding the facility, perfect for fast times and safe cycling. The run course follows scenic lakeside trails with minimal elevation change, allowing competitors to push their pace. As part of Australia's largest club race series, the event caters to everyone from 7-year-old first-timers to experienced age-groupers, with multiple distance options ensuring there's a challenge suited to every fitness level and age group.
Getting There
Sydney International Regatta Centre is located at Penrith Lakes, approximately 55km west of Sydney CBD. By car, take the M4 Motorway to Castlereagh Road exit, then follow signs to the Regatta Centre. Ample free parking is available on-site. By public transport, catch a train to Penrith Station, then take a taxi or rideshare (approximately 10 minutes). Arrive at least 60-90 minutes before your scheduled start time to allow for registration, transition setup, and warm-up.
Weather & What to Pack
Mid-December in Western Sydney typically brings warm to hot conditions, with temperatures ranging from 18-30°C. Early morning starts at 8:00 AM help competitors avoid the peak heat, though temperatures can still climb quickly. Expect high humidity levels and strong UV radiation, as summer is well underway. Sun protection is essential - apply waterproof sunscreen before the swim and reapply during transition. Hydrate thoroughly in the days leading up to the event and take advantage of all on-course water stations. Light, breathable race clothing and a hat for post-race are recommended.
Race details last updated 6 Sep 2026
Planning to run Hills Tri Series: Race 4 next time?
Official WebsiteFrequently Asked Questions
Is this race suitable for first-timers?
Absolutely! The Enticer distance (250m swim/10km bike/2.5km run) is specifically designed for beginners, and the Aqua Run or Aqua Bike options let you try two disciplines instead of three. Hills Tri Club is known for its welcoming, supportive atmosphere.
What equipment do I need?
You'll need swimmers/tri suit, goggles, swim cap (usually provided), bike in working order, helmet (mandatory), running shoes, and a towel. Wetsuits are optional depending on water temperature. Transition space is provided for your gear.
Can I register on race day?
While online pre-registration is strongly encouraged, check the official Hills Triathlon Club website or Race Result registration page for late entry availability. Pre-registration typically closes a few days before the event.
Are there age restrictions?
The event welcomes all ages with specific distances for juniors: 7-9yo (75m/2.5km/500m), 10-11yo (100m/5km/1km), and 12yo categories. Adults can compete in Enticer or Sprint distances, with no upper age limit.
What happens after I finish?
Results are posted promptly via Race Result, with full splits for each leg. The Hills Tri Club creates a supportive community atmosphere with post-race refreshments and the opportunity to socialise with fellow competitors. It's part of a 7-race series if you want to continue your multisport journey.
parkruns near this race
Free, timed 5km every Saturday morning. A good hit-out between races.
- Penrith Lakes parkrun Sat 8:00am · 0.7 km away · Penrith
- Nepean River parkrun Sat 8:00am · 4.6 km away · Penrith Plaza
- Werrington Lakes Reserve parkrun Sat 8:00am · 6.6 km away · Werrington County
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