Spring Onion Sportive takes place on Sun, Apr 18, 2027 in Cobham, United Kingdom. The main route is 107 km.
- Date
- Sun, Apr 18, 2027
- Start
- Cobham 🇬🇧
- Distance
- 107 km
- Climbing
- 1,237 m
- Level
- Open to all
Your 26-week plan to Spring Onion Sportive
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.
Build my planFree to start · No credit card
A road sportive through the Surrey Hills and West Sussex, starting and finishing at Cobham Village Hall, with a provisional route of about 107 km.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
4:20–5:15
Peak-week training
6–8 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Spring Onion Sportive is 26 weeks away. This is how a coach divides that time. The first phase starts now.
01Base14 weeks · Oct 19, 2026 – Jan 24, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Jan 25, 2027 – Mar 7, 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 · Mar 8, 2027 – Mar 28, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Mar 29, 2027 – Apr 11, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Apr 12, 2027 – Apr 18, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Spring Onion Sportive?
Spring Onion Sportive takes place on Sun, Apr 18, 2027 in Cobham, United Kingdom.
How long is Spring Onion Sportive?
The main route is 107 km.
How much climbing does Spring Onion Sportive have?
Spring Onion Sportive has 1,237 m of climbing.
Who is Spring Onion Sportive for?
Spring Onion Sportive is open to all participants.
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