London T100 Triathlon takes place on Sun, Aug 22, 2027 in London, United Kingdom. The main route is 100 km.
- Date
- Sun, Aug 22, 2027
- Start
- London 🇬🇧
- Distance
- 100 km
- Level
- Mixed field
Your 45-week plan to London T100 Triathlon
The Base phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
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The age-group 100 km triathlon at the London T100 weekend: 2 km swim, 80 km bike and 18 km run on the pro T100 course, on Sunday 22 August 2027. Olympic and sprint distances are also on offer that weekend.
Your road to race day
Race day at London T100 Triathlon is 45 weeks away. This is how a coach divides that time. The first phase starts now.
01Base33 weeks · Oct 12, 2026 – May 30, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · May 31, 2027 – Jul 11, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Jul 12, 2027 – Aug 1, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Aug 2, 2027 – Aug 15, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Aug 16, 2027 – Aug 22, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is London T100 Triathlon?
London T100 Triathlon takes place on Sun, Aug 22, 2027 in London, United Kingdom.
How long is London T100 Triathlon?
The main route is 100 km.
Who is London T100 Triathlon for?
London T100 Triathlon has a mixed field of professional and amateur participants.
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