ATW St Neots Triathlon (Series)
St Neots, United Kingdom · May / July / August or September · Independent (ATW Events)
Course: 0.8 km (0.5 mi) swim, 24 km (14.9 mi) bike, 5 km (3.1 mi) run. 750 m (0.47 mi) / 24 km (14.9 mi) / 5 km (3.1 mi). Super sprint also runs: 400 m (0.25 mi) / 8 km (5 mi) / 2.5 km (1.6 mi).
Why people love it
- Racecheck rates the three races 4.5 to 4.6 out of 5 across 112 ratings, with marshals praised.
- A 400 m (0.25 mi) super sprint and shallow river banks suit first-timers.
- Swim, transition, run and finish sit in Riverside Park, about 200 m (650 ft) from the town centre.
- Run is flat and fast for most Racecheck reviewers; the bike is quiet and undulating.
Watch out for
- Five reviewers reported illness after the river swim in 2024 and 2025; the organiser says water tests passed.
- Standard swimmers overtake sprinters, so expect contact at the end of the swim.
- Roads are open; town traffic is busy at the bike start and finish.
- The run is through a public park, and reviewers had to weave around pedestrians.
- May river water can feel much colder than the stated 13.5 °C (56.3 °F).
Race
How racers feel about it, how well it is run, and how it treats a first timer. Counts for 30% of the overall score.
Toughness: Moderate
- Racer satisfactionLoved4.2
Racecheck 4.5 to 4.6 out of 5 across 112 ratings in three races; illness reports and congestion temper it. · Medium confidence
- OrganizationWell run4.3
Logistics and marshals praised across all three races; complaints cover swim crowding, route changes, short portaloos and busy roads. · Medium confidence
- First timer friendlyIdeal first race4.5
Super sprint option and a first triathlon that felt easy to follow; swim contact with standard swimmers. · Medium confidence
Course traits, not part of the score
- PR potentialFast3.7
Flat run, undulating 24 km (14.9 mi) bike · Low confidence
Swim
Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 16% of the overall score.
- Wetsuit legalUsually4.2
May races almost certainly legal; September could be marginal; World Triathlon limit 24.6 °C (76.3 °F) · Low confidence
- Water temperatureAcceptable3.1
Murky river, cold in May at 13.5 °C (56.3 °F), and five reviewers reported illness after swimming in 2024 and 2025. · Medium confidence
- Calm waterSome chop3.3
River with a current that shortened the 2024 swim course; reeds and logs near the banks. · Medium confidence
- Swim easeModerate3.2
Standard swimmers start close behind and overtake; the 2025 buoy crowded the turn. · Medium confidence
- Swim experienceFine3.1
Murky water, cold at times, crowded turn and illness reports, offset by shallow banks and canoe cover. · Medium confidence
- Swim supportGood4.1
Canoes patrol and shallow banks let tired swimmers stand; a super sprint is offered. · Medium confidence
Bike
Road surface, closures, scenery and wind. Counts for 18% of the overall score.
- Road surfaceGood3.6
No surface complaints found · Low confidence
- Road closuresPartly closed2.6
Open roads with marshals; several reviewers hit traffic and one got stuck behind a car at dismount · High confidence
- Bike sceneryBeautiful3.6
Quiet country and village roads through open Cambridgeshire farmland; few reviewers mention scenery. · Low confidence
- WindSome wind3.0
Open farmland; no wind reports · Low confidence
Course traits, not part of the score
- Bike speedFast3.7
Town traffic · Medium confidence
- Bike flatnessMostly flat3.7
Undulating per most reviewers; 24 km (14.9 mi) · Low confidence
- Bike simplicitySome technical parts3.3
Town traffic, a late route change and roundabout loop confused some · Medium confidence
Run
Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
- Crowd supportStrong3.8
Compact venue with two park laps near the finish; the crowded park limits atmosphere. · Low confidence
- Aid stationsGood3.8
Aid stations 4.25 on race 1; finish food and drinks · Medium confidence
- Run sceneryBeautiful3.6
Park laps beside the river; reviewers mention pedestrians more than views. · Low confidence
- Run conditionsEasy3.5
Two park laps, pedestrians · Medium confidence
Course traits, not part of the score
- Run flatnessFlat4.6
Flat 5 km (3.1 mi) · Medium confidence
Conditions
Air temperature, how predictable the weather is, setting, and spectating. Counts for 13% of the overall score.
- Air temperaturePleasant3.9
May to September, about 8 to 22 °C (46 to 72 °F), estimate · Low confidence
- Weather reliabilityVariable3.1
English weather; 2025 rain and extreme heat noted; wet-weather parking limits · Low confidence
- Venue beautyLovely3.7
Riverside Park and Regatta Meadow; reviewers like the compact setting more than describe it as scenic. · Low confidence
- Spectator friendlyEasy4.3
Compact venue where spectators can watch swim, transition and run laps; town is about 200 m (650 ft) away. · Medium confidence
Course traits, not part of the score
- Low altitudeSea level4.9
About 15 m (49 ft) above sea level · High confidence
Stay and travel
Hotels, walkability, getting there, and the town around the race. Counts for 10% of the overall score.
- Hotel availabilityGood4.0
Camping on site; St Neots, Bedford and Cambridge hotels · Low confidence
- Hotel valueGood3.6
Normal-ish market-town prices; no data · Low confidence
- WalkabilityWalkable4.3
Town two minutes (about 200 m (656 ft) / 650 ft) from the venue; short swim-exit-to-transition run · Medium confidence
- Travel easeEasy3.8
St Neots station on the Thameslink line; Luton about 60 km (37 mi) · Low confidence
- LogisticsSimple4.0
Racecheck logistics scored 4.96, but busy town traffic and a roundabout loop at the finish confused some riders. · Medium confidence
- Town and foodGood3.8
Market town beside the park · Low confidence
Key facts
- Location
- St Neots, Cambridgeshire, United Kingdom
- Typical month
- May / July / August or September
- Latest or next date
- 2 May 2027
- Organiser
- Independent (ATW Events)
- Distances (non-standard)
- 0.8 km (0.5 mi) swim, 24 km (14.9 mi) bike, 5 km (3.1 mi) run
- Swim venue
- River Great Ouse beside Riverside Park and Regatta Meadow, St Neots (river)
- Water temperature
- 13–20 °C (55–68 °F)
- Wetsuit
- Legal in May; later races depend on temperature (Triathlon England follows World Triathlon, no wetsuit above 24.6 °C / 76.3 °F for swims up to 1,500 m)
- Swim start
- in-water group starts by distance
- Run laps
- 2
- Air temperature
- 8–22 °C (46–72 °F)
- Altitude
- 15 m (49 ft)
- Nearest airport
- London Luton Airport, 60 km (37 mi) away
- Where to stay
- St Neots, Bedford, Cambridge
- Booking
- Day-trip race with on-site camping the night before. Town centre is a two minute walk from the venue.
What racers and reviewers say
- Racecheck St Neots Triathlon Series Race 1Raced 2026 · aggregator · Positive
45 ratings average 4.52 out of 5 (2026: 4.57). Sprint reviews from 2026 praise the marshals, a clear transition and a first triathlon that felt easy to follow; murky but clean-feeling water and canoes in the swim. Standard reviews from 2024 and 2025 describe a cold river, a strong current that altered the course, congestion leaving town, and several reviewers ill after the swim. Logistics scored 4.96; water quality 3.65.
“This is the one to do if you're a novice”
- Racecheck St Neots Triathlon Series Race 2Raced 2025 · aggregator · Positive
39 ratings average 4.52 out of 5 (2025: 4.39). Reviewers praise the friendly marshals, the quiet fast country roads, the compact venue that suits spectators and first-timers, and the shallow, warm river in July. Concerns: standard swimmers passing sprinters, an added buoy that crowded the turn, cars on the short super-sprint route, local traffic, and one reviewer ill with suspected E. coli after the river swim. Water quality 3.82.
- Racecheck St Neots Triathlon Series Race 3Raced 2025 · aggregator · Positive
28 ratings average 4.63 out of 5 (2025: 4.72). Reviewers call it welcoming for novices thanks to the super sprint, praise the water support and fast, undulating bike, but note the run is crowded with park users and pedestrian bridges. Standard riders caught sprinters on the bike and in the swim, and portaloos ran short. Water quality 4.50.
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Sources
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