Royal Windsor Triathlon takes place on Sun, Jun 13, 2027 in Windsor, United Kingdom. The main route is 51.5 km.
- Date
- Sun, Jun 13, 2027
- Start
- Windsor 🇬🇧
- Distance
- 51.5 km
- Climbing
- 328 m
- Level
- Open to all
The Royal Windsor Triathlon is a historic multisport event featuring an open water swim in the River Thames, a closed-road cycle through Windsor, and a run past Windsor Castle along the Long Walk.
Official event pageWhat this race demands
The Royal Windsor Triathlon demands a balanced multisport effort across a 51.5 km standard distance with moderate elevation change.
Multisport transition
Athletes must manage the physiological shift from an open water swim in the River Thames to a closed-road cycle and a run past Windsor Castle.
Aero positioning
The closed-road cycling leg requires sustained power output on the bike to maintain speed across the course.
Running fatigue resistance
The final run leg along the Long Walk demands efficient running form under the fatigue of prior swimming and cycling efforts.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at Royal Windsor Triathlon is 42 weeks away. This is how a coach divides that time. The first phase starts now.
01Base30 weeks · Aug 24, 2026 – Mar 21, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Mar 22, 2027 – May 2, 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 · May 3, 2027 – May 23, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · May 24, 2027 – Jun 6, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Jun 7, 2027 – Jun 13, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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