Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Triathlon · Sprint
Blenheim Palace Triathlon 2027
- Race day
- Saturday, 5 June 2027
- Location
- Woodstock, Oxfordshire, UK
- Distance
- 25.950000000000003 km total
0.75km swim 19.8km bike 5.4km run
Blenheim Palace Triathlon: 5-6 June 2027 — entry cost, the Great Lake swim, Great Court finish, a split-time calculator and real Verus athletes racing it.
268 days to go
Key Race Metrics & Overview
- Date
- Saturday, 5 June 2027
- Venue
- Blenheim Palace, Woodstock, Oxfordshire (swim in the Great Lake, transition/finish at the Great Court)
- Distance
- Sprint — 25.950000000000003km total
- Start Time
- TBC — the event runs across both Saturday and Sunday, with sprint and super sprint waves on each day; exact times were not published in sources checked.
- Draft-Legal Bike
- No — non-drafting
- Cut-Off
- Not published for this event — check the official site.
Also this weekend
The event runs across both Saturday and Sunday, with each day offering Super Sprint (400m/13.3km/2.9km) and Sprint (750m/19.8km/5.4km) distances, individually or as a relay. A 'Weekend Warrior' option lets athletes complete multiple sprint-distance races across the weekend.
Super Sprint
Offered on both days alongside the Sprint distance.
Leg 1 of 3
Swim — 0.75km
A swim in Blenheim Palace's own Great Lake — water temperature is typically 16-19°C in early June.
- Venue
- The Great Lake, Blenheim Palace
- Elevation gain
- No official figure published — see notes above
- Surface
- Lake — still water.
Wetsuit: Compulsory for this event, per Supertri's own event information — rental is available via Synergy Wetsuits. Typical early-June water temperature is 16-19°C (60-66°F).
Leg 2 of 3
Bike — 19.8km
19.8km bike leg around the Blenheim Palace estate and surrounding roads.
- Venue
- Roads around the Blenheim Palace estate, Oxfordshire
- Elevation gain
- No official figure published — see notes above
- Surface
- Road.
Non-drafting
Leg 3 of 3
Run — 5.4km
5.4km run finishing at the Great Court.
- Venue
- Blenheim Palace estate, Oxfordshire
- Elevation gain
- No official figure published — see notes above
- Surface
- Road/parkland path.
Wetsuit outlook
Will you need a wetsuit at Blenheim Palace Triathlon?
Water temperature at inland lake in June has typically been 12.5°C, ranging from 10.8°C to 13.3°C in eight of every ten years. Against British Triathlon's thresholds for this race's 750m swim, that means:
Wetsuit mandatory
Below 14°C a wetsuit is compulsory for a 750m 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
Compulsory for this event, per Supertri's own event information — rental is available via Synergy Wetsuits. Typical early-June water temperature is 16-19°C (60-66°F).
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
Transition and the finish are both at the Great Court, Blenheim Palace.
Blenheim Palace Triathlon Split Calculator
Blenheim Palace Triathlon Split-Time Calculator
Enter your own swim, bike and run pace to project a real finish time.
Projected Finish Time
1:28:18
Racing a different distance? Try the generic split calculator or the swim pace calculator.
Where Blenheim Palace Triathlon 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
Reported by third parties as from around £79 (2027) or £60 with a £300 charity-fundraising pledge — not confirmed on an official pricing page at the time of writing, so check the official site for current tiers.
Ballot policy
No ballot mentioned — entry is direct via the organizer's site.
Age requirement
Not published for this event — check the official site.
Charity Places
A charity-place option (around £60 entry plus a £300 fundraising pledge) was reported by third parties — confirm current terms with the organizer.
Race Day Info & Checklist
On the day
- Organized by supertri (the elite short-course triathlon company) — blenheimtriathlon.com now redirects to supertri.com.
- Has hosted British and English Sprint Distance Triathlon Championships, and served as a European Age Group qualifier in a recent year.
- A festival-style weekend with finish-line live music and spectator day/annual passes.
- Parking is free for competitors but pre-booking is recommended, since on-the-day parking fills quickly — allow around 45 minutes to walk from the car park to transition.
- Race pack: a grounds/transition wristband, bib number, safety pins, and helmet and bike stickers — the timing chip is also issued at pack pickup, which happens on race day rather than by post.
- Bike hire is available via On Your Bike, and any road-worthy bike (road, hybrid or mountain bike) is accepted.
Checklist
- Wetsuit (own or hired) for the Great Lake swim, given typical early-June water temperatures
- Bike checked and race-ready, including a working helmet
- Race number and any timing chip fitted per your race pack instructions
- A plan to reach the Blenheim Palace estate, Woodstock, Oxfordshire
Transport, Spectating & Where to Stay
Transport
Oxford is the nearest mainline station; New Oxford Parkway is closer still, with the S3 bus running to Woodstock roughly every 30 minutes. By car, the venue is off the M40 at Junction 9.
Free competitor parking, but pre-booking is recommended — on-the-day parking fills quickly and allow around 45 minutes to walk to transition.
The bike course runs on roads around the Blenheim Palace estate rather than fully closed public roads — check the official site for specifics.
Spectator guide
The Great Court gives strong views of transition and the finish, with spectator day/annual passes available for the wider festival-style weekend.
The Blenheim Palace estate is large but the swim/transition/finish areas are close together around the Great Court and Great Lake.
Where to stay
Woodstock
+ The closest town to Blenheim Palace, with a range of accommodation.
– A small town, so options are more limited than nearby Oxford.
Oxford
+ A much wider choice of hotels, a short drive from Blenheim Palace.
– Requires transport to and from the venue.
Frequently Asked Questions
When is the Blenheim Palace Triathlon?
The 2027 edition runs Saturday-Sunday, 5-6 June 2027.
What distances does the Blenheim Palace Triathlon offer?
Super Sprint (400m/13.3km/2.9km) and Sprint (750m/19.8km/5.4km), individually or as a relay, on both days of the weekend.
Who organizes the Blenheim Palace Triathlon?
supertri, the elite short-course triathlon company — the event's old blenheimtriathlon.com domain now redirects to supertri.com.
Do I need a wetsuit for the Blenheim Palace Triathlon?
Yes — Supertri makes it compulsory for this event, whatever the water temperature. Rental is available via Synergy Wetsuits if you don't own one. The Great Lake typically sits at 16-19°C in early June.
Where does the Blenheim Palace Triathlon start and finish?
The swim is in the Great Lake at Blenheim Palace; transition and the finish are both at the Great Court.
Has the Blenheim Palace Triathlon hosted any championships?
Yes — it has hosted British and English Sprint Distance Triathlon Championships, and served as a European Age Group qualifier in a recent year.
When were Blenheim Palace Triathlon results published?
No results yet — they'll be added here once the race has actually happened, or check the official results source directly.