Event Info
Keen As Mustard
Nene Valley

Updated November 2024

Full event info Keen As Mustard Nene Valley swimrun, held toward the end of September each year. This venue is not far from Peterborough, in Cambridgeshire. The swimming for all distances is in the beautiful River Nene, making this a freshwater event.

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Event Info Keen As Mustard
Nene Valley

Location

The event is based at Sibson Lake, 31 Great North Rd, Stibbington, PE8 6LS

How to get there

First, you need to get to Peterborough. From there you can get a taxi (about a 13-minute ride) or hire a car, to get to Sibson Lake.

The nearest airports to Peterborough are

Cambridge (CBG) Airport which is 50 km away.
London Luton (LTN) (77.7 km),
London Stansted (STN) (83.6 km),
Birmingham (BHX) (101.4 km)
and London Heathrow (LHR) (123.5 km)

By coach, it is 2 hours 30 minutes from London to Peterborough.

By rail, it takes about 45 minutes from London to Peterborough.

If you are driving yourself from elsewhere in the UK, Sibson Lake is just off the A1 (M), West of Peterborough.

Keen As Mustard Swimrun Nene Valley Sibson Lake Peterborough Big Map

Not far from Peterborough

Where to stay

There is no specific accommodation recommended; camping is available on-site, but you need to book.

Otherwise, there is plenty of choice in the area at AirBnB, Booking.com and other accommodation websites.

Race distances

There are 4 race distances:

An Intro event of 5 km
A sprint distance of 10 km
a 'Half' distance of 21 km,
and a "Full" distance of 31 km.

The 5 km Intro race involves 1125 metres of swimming (4 sections) and 3.9 km of running (5 sections). Start time is 4:30pm on Saturday 7th June.

The 10 km race involves 5 swim legs and 6 running sections. The total swim distance is 2155 metres and total run distance is 7.850 km. Start time is 11:00am.

The 21 km event includes 4430 metres of swimming over 7 legs, and 17.5 km of running, over 8 legs. The start time is 08:30am.

The 31 km Full event involves 6000 metres of swimming over 11 legs, and 25 km of running over 12 legs. The start time is 08:30am.

The 5 km and 10 km distances are only open to solo competitors; the 21 km and 31 km events are open to solo racers and teams of two.

The swim to run ratio for all the distances is 1:5 ie 20% swimming and 80% running.

Race routes

According to Keen As Mustard:

"The run sections for the 5k and 10k are predominantly flat, off road with tracks, field and compact trail. The run sections for the 21k and the 31k are more undulating and take you down in the valley on a scenic but challenging river adventure with upstream and downstream swimming on the most beautiful and clean sections of the River Nene."

All race distances start at Adventure Nene Sibson Lake.

Keen As Mustard Swimrun Nene Valley Sibson Lake

Just off The Great North Road

Event Info Keen As Mustard
Nene Valley

Energy stations

There will be 1 water and energy drink checkpoint on the 10k course.
On the 21k course there will be 2 stations.
On the 31k course there will be 4 stations, 2 of which are accessible twice, giving 6 opportunities to re-hydrate.

Cut-off times

Cut-off times are based on a pace of 3 minutes per 100 metres of swimming and 15 minutes per mile running pace, which is quite generous!

Weather

Held in June, the water is cool, and the weather is mild but a little unpredictable. The water temperature is around 15 degrees C. Wetsuits are not compulsory unless the water is below 14 degrees C. Proper trail shoes are strongly recommended.

There is always a chance of cold or wet weather, so you should take suitable clothing for every eventuality!

Summary of event info Keen As Mustard Nene Valley

The Keen As Mustard Nene Valley swimrun event is at a great location; swimming in fresh water and running on wooded trails with significant challenge!

Check dates for 2025 at our Calendar Europe 2025 page!

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