The Hertfordshire 100

Online Entry for The Hertfordshire 100 is now closed, you can still turn up and enter on the day by filling in an On The Day Entry Form.

If you are entering please make sure you have read the Important Info for Riders section of our site.

GPX / TCX Files can be downloaded at Hert 100 2015 gpx.

Alternatively you can use GPSies using the following links.

Hert 100 Long –
Hert 100 Medium –
Hert 100 Short –

The Hertfordshire 100 will take place on Sunday the 30th of August 2015.

The Hertfordshire 100 sportive has probably some of the nicest scenery and rolling countryside roads in England, and is just outside of London. Most of the cyclists from the surrounding areas flock to this area to take in the quiet, rural roads that are coupled with demanding hill climbs to satisfy all types of rider.

Hertfordshire 100

A Rewarding Sportive with Challenges to Suit Riders of all Levels

The 3 stunning routes take advantage of the great rural roads and allow riders to choose their challenge of either 100 miles/100km (62 miles) or 33 miles.

The route heads out from Brookmans Park through Brickendon with rolling countryside roads that allow you to get warmed up before hitting some undulating hills that really will get you warmed up! At Dane End the long route splits east towards Bishops Stortford to take in more rolling countryside roads around Much Hadam and then heads north and back west to rejoin the medium route after a 40 mile loop. The route continues west towards Welwyn Garden City through little picturesque villages such as Ardeley and Weston before heading south back towards Tewin. All routes finish through the short sharp hills of ‘Little Switzerland’ with 6 miles left to ride, which is the sting in the tail of this unforgettable ride. Riders will be pleased to see the finish after these punishing hills, and will feel great once they settle down to some refreshment at the end.

The HQ is minutes away from the M25 Junction 24 or for those on Public Transport Potters Bar station is very close with regular trains from London.

Enter The Hertfordshire 100 Online

Online pre-entry allows you to get this event in your diary and is the easiest way to secure your place. Numbers are limited for this event and you will be saving yourself an admin fee if you enter on-line rather than paying on the day. On-line pre-entry will also allow you to turn up on the day and just collect your entry pack without the hassle of filling in forms, registering and queuing up.

We may have to close registration on the day if the event reaches its capacity so it is best to pre enter on-line to avoid disappointment.

32 Miles
This is a great route for the beginner or someone entering their first sportive. Anyone looking to get involved in the Hertfordshire 100 and hasn’t quite got the legs for the longer rides, this is for you.

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100 Kilometers
The 100km route (actually 64 miles) will take you further out onto the quiet, rolling countryside roads of Hertfordshire towards Tewin and Ardeley. The stunning route with undulating hills creates a tougher challenge for those looking to feel the burn in their legs.

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100 Miles
The 100 miler will be the ultimate test of stamina, a good level of fitness will be required. This route takes in the same route as the 100km but heads out towards Much Hadam and Bishops Stortford to add another 40 miles of beautiful countryside. The steep hills of ‘Little Switzerland’ will be your final test. Enter the full Hundred! The glory you’ll experience will be worth it.

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Click Here for a High Definition Map

The Hertfordshire 100 route

Event Headquarters

Chancellor’s School
Pine Grove
Brookmans Park
Herts, AL9 7BN
The HQ is minutes away from the M25 Junction 24 or for those on Public Transport Potters Bar station is very close with regular trains from London.

On the Day

The event HQ will open at 7.30am for registration.

Long Riders will be able to register from 7.30am

Medium Riders will be able to register from 8.00am

Short Riders will be able to register form 8.30am
Sign on and collect your pack which will include your timing chip, number and map.
Get your free energy product.
Head to the start line where you will be given a briefing on the route and signs to look out for.
Toilets and changing room facilities are available.

Start Time – 100m  & 100km Routes:

The event will start at 8am for long riders and 8.30am for medium riders
Riders must be on the road by 9.30am
Appox 40 riders will go off with  2 minute intervals between each group.

Start Time – 32m Route:

The start time will be between 9am and 10am for the short route
Riders on the short route must be on the road by 10am.

Other Information

There is a mechanic and drink stops on route where you can refill your bottles and tuck into some food to keep you going. You should however bring spare food and drink as the route is rural and may not be near shops.

We do our best to try and make sure your ride on the road runs as smoothly as possible by marking the roads clearly. If you find you have not seen a marker for a while, stop and consult your map, ask someone, or find a landmark and give us a call using the number provided on the day.

Once you complete the ride, make sure you report back to one of our team at the finish line and hand back the timing chip. We’ll make sure your time is recorded. If you do not report back, you may be presumed lost and emergency services may be called.

Wearing a helmet is compulsory. Failing to do so will result in refused entry. Unfortunately British Cycling’s Insurance does not allow riders with Time Trial Bars.

Enjoy the ride!