01Marina Bay reservoir, swim lap one
Find two-kilometre rhythm before chasing feet
Sheltered reservoir water can tempt you into swimming harder than the distance requires. Find breathing and a clean line early. The bike and run will have plenty of opportunities to make you work.
Settle into rhythm. Sight toward the Aussie exit.
02Marina Bay reservoir, swim lap two
Keep the second kilometre under control
If there is a short exit between swim laps, use it to get your bearings and settle again. Don't turn the second kilometre into a chase because the first felt comfortable.
Reset breathing at the exit. Hold the same effort as lap one.
03F1 precinct, opening bike circuits
Choose an effort the heat will let you repeat
Smooth city roads can give you a wonderful first split and a very poor afternoon. Set effort and fluid intake early, then ride the repeated sections as patiently as if nobody could see your speed.
Cap opening watts. Start fluid and electrolyte intake from lap one.
04F1 precinct, middle bike circuits
Make cooling part of the pacing plan
By the middle of a hot city ride, the same wattage can feel very different. Listen to the cost of the effort, not just the number on the screen, and keep drinking before thirst becomes the story.
Hold effort over watts if the heat bites. Fuel on the same schedule each lap.
05F1 precinct, final bike circuit
Get off the bike ready for 18 km on foot
Late in the ride, there's very little to gain from one more fast circuit. Get the final planned fuel and fluid in while you can still do it comfortably. Your first run kilometres will tell you whether that decision mattered.
Stay patient. Finish planned fluids before T2.
06Marina Bay waterfront, opening run
Use the first kilometres as a heat check
The waterfront landmarks are an easy excuse to start too fast. Take the first part of the run by breathing and effort, find every useful bit of cooling and let the rhythm arrive instead of forcing it.
Hold opening pace. Take fluid and ice at every station.
07Marina Bay landmarks, finishing run
Race what is left, not what you hoped to have
On a second hot run loop, the skyline hasn't changed but your legs have. Keep cooling and eating where you can. If you have something left, this is the time to use it.
Compare lap two to lap one honestly. Run the last kilometres on effort.