The Course


The race will begin with a deep water start. After the race briefing, all athletes in wave  1 will walk down to the harbour and swim out approximately 50m to the start line. This will be denoted with two swim buoys and kayakers who will guide you into position. 

The route is a 750m CLOCKWISE loop around the circumference of the lake. The sprint distance athletes will complete one loop, wheras the standard distance athletes will complete two full loops.


The route begins with a foot-down point as you leave Stanborough Lakes. This is a rule we have enforced dilligently for several years. We believe it is entirely necessary in keeping the race safe and fair for all participants.


At the foot-down point, both wheels must come to a complete stop and one foot must be on the floor, keeping your balance. It is always your decision when to pull out on the main road.”

The route heads out to a roundabout where the main loop starts. The sprint distance athletes will complete one loop and the standard distance athletes will complete two loops. 

Standard distance athletes are NOT required to return to Stanborough Lakes after completing their first lap.


The course is on hard, compacted ground with short cut grass, so despite being an off-road run, is incredibly fun to race on and can make for some fast times! There is one short climb towards the end of each lap. 

Because the course is contained within a small area, it is very spectator friendly, so expect lots of support at multiple stages on each loop!

Water and energy gels will be provided once on every lap. Depending on the weather, we will be providing more opportunities to rehydrate on the course. 

Quick Event Info

Hertfordshire Triathlon
Sprint & Standard Distance
RUN 5/10Km
BIKE 20/40Km
RUN 2.5/5Km
Venue: Stanborough Lakes, Welwyn Garden City, Hertfordshire
Organiser: ActiveTrainingWorld