Fairlands Valley Challenge

About the Event

Choose your own off-road adventure through the serene Hertfordshire countryside. The Fairlands Valley Challenge returns on Sunday, 19th July 2026, offering a classic, self-navigated trail event with five distinct distances: 10K, Half Marathon, 18 Miles, Marathon, and 50K Ultra. This grassroots challenge emphasizes personal achievement over competition, inviting runners and walkers to explore the picturesque, dog-friendly trails around Stevenage at their own pace. With a simple, affordable entry and a welcoming community ethos from the Fairlands Valley Spartans, it's the perfect day out for those seeking a genuine, low-key ultrarunning experience or a scenic long-distance trail run. Navigate your chosen route, enjoy the camaraderie, and earn your finish in a truly authentic trail running event. Lace up for the challenge that puts the joy of exploration first.

Races Offered

10K

Jul 19, 2026

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Distance — 10K

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13.1 Miles

Jul 19, 2026

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Distance — 21.1K

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18 Miles

Jul 19, 2026

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Distance — 29K

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26.2 Miles

Jul 19, 2026

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Distance — 42.2K

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50 km

Jul 19, 2026

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Distance — 50K

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14 days remaining

Weather History

These values represent the 3-year monthly averages for July in Stevenage.

thermostat Temperature

13.2° / 21.4°

wb_sunny Feels like

11.1° / 18.7°

light_mode Avg sunshine hours

10h 44m

water_drop Avg rainfall

2.5 mm

ac_unit Avg snowfall

—

air Avg wind speed

14.6 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (5.6)

humidity_mid Humidity

72.1%

wb_twilight Sunrise

05:01

nightlight Sunset

21:10

About Stevenage

Learn more about the host city, Stevenage.

Stevenage is a town in the county of Hertfordshire, in the south east of England, around 32 miles north of central London. The town is well known for being the first ever 'new town'; new towns were a series of towns built near London after World War II. Stevenage as a whole is not as a major tourist attraction, but there are some attractions that may attract local visitors. An interesting fact about the town is that a view of Stevenage from the air, shows it as a heart shape. In 2024, it a population of 89,500 people.