Singapore T100 Triathlon 2025

THE SWIM
You’ll make history by being part of the first-ever triathlon swim in Marina Bay, which boasts one of the world’s most iconic and stunning city views. The freshwater 2km swim will set off in a rolling start format from the start pontoon near the incredible Helix Bridge. Large marker buoys will guide you around the point-to-point swim, which heads under the Benjamin Sheares Bridge towards the southeast before turning around and back under the bridge. You’ll then bear left past the ArtScience Museum before reaching transition in the shadow of the Marina Bay Sands hotel.

With a usual water temperature of 28°C it’s almost certainly going to be a non-wetsuit swim.

Athletes must be competent swimmers to participate in this event. During registration you will be asked to confirm that you have completed at least three (3) open water swims. You must also submit proof that you have completed an open water swim of distance of 1500m or greater since 1 January 2025 at a pace of 2min30sec per 100m or faster, (ie a time of 37min30sec for 1500m or 47min 30sec for 1900m).

This proof must be uploaded to your registration before 11:59 SST (GMT +8) on 17 March 2025. Valid proof includes finisher certificate or screenshot of a race result showing event date, athlete name, swim distance and swim time.

Details of swim qualification events can be found below in the FAQs section under Swim Trial Events.

Note: On race day, athletes must complete the first 200m of their swim within 5 minutes. Athletes who fail to do this will be removed from the swim course.

CUT-OFF
The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Swim cut-off: Completing the first 200m within 5 minutes, completing 2km within 55 minutes after your swim wave start.

THE BIKE
The bike course takes place on a closed city circuit route starting and finishing at Marina Bay. The fast course is on smooth tarmac with low rolling resistance and is made up of five 16km laps.

What sets this course apart from any other is the location – smack in the middle of the city with stunning views of Marina Bay and the city skyline. You’ll cycle past many of the city’s most iconic landmarks including the ArtScience Museum, Helix Bridge, Singapore Flyer, and Marina Bay Sands hotel as well as crossing the Benjamin Sheares Bridge.

The total elevation of the bike course is approximately 700m. Each lap has an aid station giving athletes five opportunities to top up on energy and hydration.

CUT-OFF
The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Bike cut-off: 4 hours 30 minutes after your swim wave start

THE RUN
The 18km run run features four 4.5km laps on flat, paved surfaces and provides the most scenic view from within the heart of Singapore’s iconic skyline. From transition, you will skirt the waterside, turning right to navigate around the ArtScience Museum and under the Benjamin Sheares Bridge before continuing to the turn-around point. Then it’s back towards the Marina Bay Sands Hotel to complete each lap. During each 4.5km lap, you will be able to top up with fuel and hydration at three aid stations. On your final lap, you’ll hit the finishing carpet to cross a spectacular finish line fit for the world’s best athletes.

CUT-OFF
The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Run cut-off: 6 hours 30 minutes after your swim wave start