Compiled and fact-checked by Tommo, Verus founder · Last verified August 2026 · Spot an error?
Triathlon · Sprint
Thorpe Park Triathlon 2026
- Race day
- Sunday, 23 August 2026
- Location
- Chertsey, Surrey, UK
- Distance
- 25.75 km total
0.75km swim 20km bike 5km run
Thorpe Park Triathlon: 23 August 2026 — the Fleet Lake sprint course, a split-time calculator, and real Verus athletes racing it.
Key Race Metrics & Overview
- Date
- Sunday, 23 August 2026
- Venue
- Thorpe Water Park, Staines Road, Chertsey, Surrey KT16 8PN
- Distance
- Sprint — 25.75km total
- Start Time
- Waves between 7:00am and 9:30am.
- Draft-Legal Bike
- No — non-drafting
- Cut-Off
- 2.5 hours, per the event listing.
Also this weekend
This is a single sprint-distance event — RunThrough runs a separate standalone Run Thorpe Park 5K & 10K (not a triathlon) at the same venue on a different date.
Leg 1 of 3
Swim — 0.75km
A single lap of Fleet Lake, marked by six sighting buoys.
- Venue
- Fleet Lake, Thorpe Water Park
- Elevation gain
- No official figure published — see notes above
- Surface
- Lake — still water.
Wetsuit: Not confirmed in sources checked — check the official event page for the current wetsuit rule.
Leg 2 of 3
Bike — 20km
20km bike leg around the Thorpe Park area.
- Venue
- Roads around Thorpe Park, Surrey
- Elevation gain
- No official figure published — see notes above
- Surface
- Road.
Non-drafting
Leg 3 of 3
Run — 5km
A three-lap, out-and-back 5km run around Thorpe Water Park.
- Venue
- Thorpe Water Park
- Elevation gain
- No official figure published — see notes above
- Surface
- Path.
Wetsuit outlook
Will you need a wetsuit at Thorpe Park Triathlon?
Water temperature at inland lake in August has typically been 17.8°C, ranging from 16.6°C to 19.8°C in eight of every ten years. Against British Triathlon's thresholds for this race's 750m swim, that means:
Wetsuit optional — and recommended
Between 14°C and 22°C the choice is yours. Rule 4.2(b) recommends a wetsuit for all novices and age-groupers up to 22°C.
What would have happened in each of the last 16 years
- Optional (recommended)16 of 16
What the organiser says
Not confirmed in sources checked — check the official event page for the current wetsuit rule.
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 is at Thorpe Water Park.
Thorpe Park Triathlon Split Calculator
Thorpe Park Triathlon Split-Time Calculator
Enter your own swim, bike and run pace to project a real finish time.
Projected Finish Time
1:26:30
Racing a different distance? Try the generic split calculator or the swim pace calculator.
Where Thorpe Park Triathlon starts and finishes
Thorpe Park Triathlon starts at Thorpe Water Park, Staines Road, Chertsey, Surrey KT16 8PN and finishes at Fleet Lake, Thorpe Water Park. We haven't been able to place those on a map accurately enough to show one — a pin in the wrong place is worse than no pin.
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. The official course map is the one to use: view it on the organiser's site .
Entry & Ballot
Direct entry summary
£85 for the sprint distance; a £360 fundraising-free "Foundation Place" is also offered; spectator tickets are £25. A Macmillan Cancer Support charity-place option is around £30 entry plus a £200 minimum fundraising pledge.
Ballot policy
No ballot — entry is direct via RunThrough Events.
Age requirement
Not published for this event — check the official site.
Charity Places
Macmillan Cancer Support offers a charity-place route at around £30 entry plus a £200 minimum fundraising pledge.
Race Day Info & Checklist
On the day
- Organized by RunThrough Events at Thorpe Water Park, next to Thorpe Park theme park.
- Free entry to Thorpe Park theme park is included with race entry.
- Parking at the Thorpe Park car park (a 5-minute walk to the event village) is free until 1:00pm, then £10.
- Race pack collection is 5:30-6:30am, with waves starting from 7:10am.
Checklist
- Wetsuit if you plan to use one for the Fleet Lake swim, given the rule isn't confirmed — check the official page
- 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 Thorpe Water Park, Staines Road, Chertsey, Surrey KT16 8PN
Transport, Spectating & Where to Stay
Transport
Chertsey and Staines railway stations are both in the wider area — exact distance to the venue was not confirmed in sources checked.
Not published in detail for this event — check the official site closer to race day.
The bike course runs on open roads around Thorpe Park rather than a fully closed circuit — check the official site for specifics.
Spectator guide
Thorpe Water Park covers the swim, transition and finish, making it the natural spectator hub. Spectator tickets are £25.
Not published in detail for this event.
Where to stay
Chertsey / Egham
+ Closest to Thorpe Water Park.
– Smaller towns with more limited hotel choice.
Staines-upon-Thames
+ A short drive away with a wider range of accommodation.
– Requires transport to the venue.
Frequently Asked Questions
When is the Thorpe Park Triathlon?
Sunday 23 August 2026, with waves running between 7:00am and 9:30am.
What distance is the Thorpe Park Triathlon?
Sprint distance — 750m swim / 20km bike / 5km run.
Who organizes the Thorpe Park Triathlon?
RunThrough Events, at Thorpe Water Park next to the Thorpe Park theme park.
How much does the Thorpe Park Triathlon cost?
£85 for the standard sprint entry, or a £360 fundraising-free "Foundation Place."
Which charity does the Thorpe Park Triathlon support?
Macmillan Cancer Support, with a discounted charity-place entry option.
When were Thorpe Park Triathlon results published?
The 2026 race (23 August) has been run and results are published via RunThrough Rankings: https://www.runthroughrankings.com/results/8978. Men's winner: Charlie Macneice, 01:05:40. Women's winner: Nina Woollard, 01:18:01.