Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Triathlon · Middle Distance (70.3)
Grafman Middle Distance 2027
- Race day
- Sunday, 6 June 2027
- Location
- Grafham, Cambridgeshire, UK
- Distance
- 113 km total
1.9km swim 90km bike 21.1km run
Grafman Middle Distance: 6 June 2027 — the Grafham Water course, a split-time calculator, and real Verus athletes racing it.
269 days to go
Key Race Metrics & Overview
- Date
- Sunday, 6 June 2027
- Venue
- Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambridgeshire PE28 0BH
- Distance
- Middle Distance (70.3) — 113km total
- Start Time
- Historically 7:00am (2025/2026 pattern) — not yet confirmed for 2027.
- Draft-Legal Bike
- No — non-drafting
- Cut-Off
- Overall cut-off: 9 hours 30 minutes. Per-leg cut-offs are not published.
Also this weekend
A Middle Distance Aquabike and a Middle Distance Relay (2-3 person teams) both run the same day at the same venue.
Middle Distance Aquabike
Swim and bike only, at the same middle-distance lengths — no run leg.
Leg 1 of 3
Swim — 1.9km
Two laps of 950m each, with an Australian-style mid-swim exit. Swim hats are compulsory and provided.
- Venue
- Grafham Water
- Elevation gain
- No official figure published — see notes above
- Surface
- Reservoir — still water.
Wetsuit: Decided by a British Triathlon Technical Official on the morning of the race, per standard rule 4.2 — water temperature is taken race-morning only.
Leg 2 of 3
Bike — 90km
Quiet country lanes and rolling Cambridgeshire countryside, with a mandatory full stop at a marked right turn roughly 9km into the lap where the route joins a faster road. No elevation figure is published.
- Venue
- Cambridgeshire countryside
- Elevation gain
- No official figure published — see notes above
- Surface
- Public road.
Non-drafting
Leg 3 of 3
Run — 21.1km
A four-lap, 5km-per-lap course around Grafham Water with views of the Valve Tower, on traffic-free, signed and marshalled paths.
- Venue
- Grafham Water
- Elevation gain
- No official figure published — see notes above
- Surface
- Mixed traffic-free paths.
Wetsuit outlook
Will you need a wetsuit at Grafman Middle Distance?
Water temperature at reservoir in June has typically been 12.4°C, ranging from 11.1°C to 13.5°C in eight of every ten years. Against British Triathlon's thresholds for this race's 1900m swim, that means:
Wetsuit mandatory
Below 16°C a wetsuit is compulsory for a 1900m swim under rule 4.2(a).
What would have happened in each of the last 16 years
- Swim cancelled2 of 16
- Wetsuit mandatory14 of 16
What the organiser says
Decided by a British Triathlon Technical Official on the morning of the race, per standard rule 4.2 — water temperature is taken race-morning only.
Estimated from air-temperature history — no direct measurement of this water exists, and small, shallow venues tend to run a degree or two warmer than shown. The official temperature is taken an hour before the start, and only that reading decides the rule on the day.
Transitions
Bikes are racked on race morning, closing 5 minutes before the start; all wetsuits must be dipped in a Milton dip bin at the transition exit.
Grafman Middle Distance Split Calculator
Grafman Middle Distance Split-Time Calculator
Enter your own swim, bike and run pace to project a real finish time.
Projected Finish Time
5:38:03
Racing a different distance? Try the generic split calculator or the swim pace calculator.
Where Grafman Middle Distance starts and finishes
These are the start and finish points, not the route. Verus doesn't hold course files for this race, and drawing a line between two pins would be a guess you might end up training on.
Entry & Ballot
Direct entry summary
2026 pricing (for reference, now closed): Aquabike £154.76, Triathlon £175.96, Relay £198.22 per team. First come, first served — most aggregator sites still show a stale 2026 date, but the organizer's own booking system confirms the next edition is 6 June 2027.
Ballot policy
No ballot — entry is first come, first served.
Age requirement
Not explicitly published for this race — the general British Triathlon standard for middle/long-distance age-group competition is 18.
Charity Places
Alzheimer's Research UK is the official charity, supported via donation or GoFundMe fundraising — no fee and no fixed minimum-fundraising figure is published.
Race Day Info & Checklist
On the day
- Timing uses an ankle-strap chip, managed by Event Chip Timing.
- On-site café, playground and spectator support stations are available at Grafham Water Visitor Centre.
- On-site parking is available with payment machines; nearby camping is available via Lakeview Paddock.
- The organiser (Active Training World) does not publish a full athlete guide online — final race details (maps, exact parking cost, baggage, start times) are emailed to registered athletes about 10 days before the event rather than posted publicly.
Checklist
- Wetsuit, goggles, swim cap (provided) for the Grafham Water swim
- Bike, helmet (mandatory) and bike shoes, racked on race morning before the transition closes
- Run shoes and nutrition for the 90km bike and 21.1km run legs
- Body marking and race-morning check-in completed before transition closes
- Payment for on-site parking machines
- A meeting point agreed with family/friends near Grafham Water Visitor Centre for afterwards
Transport, Spectating & Where to Stay
Transport
No specific race-day train guidance is published — this is a rural venue best reached by car.
On-site parking is available at Grafham Water with payment machines.
The bike leg runs on open, not closed, public roads.
Spectator guide
No dedicated spectator guide is published, though generic "spectator support stations" and the on-site café are mentioned.
No official guidance is published on moving between viewing points.
Where to stay
Huntingdon
+ The nearest town, with a good range of accommodation and rail links.
– A short drive to Grafham Water for the start.
Grafham Water (wider)
+ Nearby camping is available via Lakeview Paddock, close to the venue.
– Limited if you specifically want a hotel rather than camping.
Frequently Asked Questions
When is the Grafman Middle Distance 2027?
Sunday 6 June 2027 — the organizer's own booking system confirms this, though many aggregator sites still show a stale, already-passed 2026 date.
How long is the Grafman Middle Distance?
A genuine 70.3-equivalent: 1.9km swim, 90km bike, 21.1km run around Grafham Water, Cambridgeshire.
Has the Grafman Middle Distance hosted championships?
Yes — it was voted National Event of the Year in 2014, and has hosted the Triathlon England Middle Distance Championships (2015 and 2023) and British Championships (2016).
What is the Grafman Middle Distance cut-off time?
9 hours 30 minutes overall.
Which charity does the Grafman Middle Distance support?
Alzheimer's Research UK, supported via donation or GoFundMe fundraising with no fee.
Does the Grafman Middle Distance have a ballot?
No — entry is first come, first served.
When were Grafman Middle Distance results published?
No results yet — they'll be added here once the 2027 race has actually happened, or check the official results source directly.