18 July 2027TriathlonSprint · Olympic · HalfCastle SeriesMidlandsEvery distance
The Castle Series in the Vale of Belvoir. A lake swim below the castle, rolling Leicestershire lanes, and a run that climbs back up to the castle itself.
Terrain
Road
Vale of Belvoir lanes
Elevation
Rolling
· The climb back up to the castle is the sting
Swim
Lake
Estate lake below the castle
Wetsuit
Wetsuit-legal
usually 16-19°C
Region
Midlands
Grantham, Leicestershire
Your runway
49 weeks to race day: base season
Plenty of runway. This far out, the win is a boring, consistent base rhythm: aerobic volume, strength, technique. The structured 12-week block starts later; what you do now decides how high it can climb.
R
Recover
Fix the nervous system first. Sleep, HRV, and the noise out.
A
Align
Fit the plan to your actual life, not the one you wish you had.
C
Condition
Minimum effective dose. The right sessions, done fresh.
E
Execute
Race-week protocol, pacing, contingency. Nothing new on race day.
Building for this one? 70.3 training plan covers the sessions, the weekly shape and how the block is paced. The R.A.C.E. Framework explains why it is built that way.
“The castle sits on a ridge, which tells you how the run finishes. Save something for the last climb, because it comes when you have nothing left.”
Abraham Spring: founder, Unbroken
The race
Belvoir Castle looks down over the vale from a ridge, and that geography defines the race. The swim is in the estate lake, the bike rolls out through the Vale of Belvoir, and the run brings you back up towards the castle, which is a hard place to be asked to climb. Sprint through half distance plus junior races, in the Castle Series style.
Questions, answered
When is Belvoir Castle Triathlon 2027?
Belvoir Castle Triathlon takes place on 18 July 2027.
What distances can I race at Belvoir Castle Triathlon?
Sprint · Olympic · Half. Pick the distance that fits your training runway, not your ego: the right distance is the one you can arrive at fresh.
How hard is the course?
Road terrain, rolling profile. The climb back up to the castle is the sting
What is the swim like?
Estate lake below the castle. Wetsuit-legal, usually 16-19°C. Practise open water before race week, not during it.
How long do I need to train for it?
From today you have 49 weeks. A full 12-week recovery-led block fits comfortably: start it in the app and it anchors to this exact date.
How do I enter?
Entries are handled by the organiser. Use the Register button above: it goes straight to the official site.
Photograph of Grantham, Leicestershire: Nancy, CC BY-SA 4.0, via Wikimedia Commons. Not official race photography.
This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by Belvoir Castle Triathlon or its organiser. Details are based on publicly available information; names are used descriptively to identify the event. For accurate, up-to-date information and to enter, always use the official event website.
