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Take on one of the most popular sportives in the region. Great for competitors of all levels, the course is one of the flattest in the UK. Come try for a near certain PB or to experience the superb race atmosphere.

Review summary

202 Reviews
  • Course
  • Organisation
  • Atmosphere
"Best organised sportive ive been to really enjoyed well signed posted great..."


Eleanor B
"Fab,organised,great value!Food lovely and medal lovely too.Scenery picturesque..."


Black A
"This was my very first event with sportive HQ and I have to Honeslty say I..."
See all reviews

How to enter the The Flat 100

  1. 100 Mile

    Bike 100mi
    Event passed
  2. 65 Mile

    Bike 65mi
    Event passed
  3. 25 Mile

    Bike 25mi
    Event passed

The Flat 100 routes

This is one of the flattest courses in the country. SportiveUK went out of their way to find a route where competitors wouldn't have to climb a hill. This is an incredibly popular event and due to the lack of elevation gain, tickets do go very fast.

Distance: 100 miles

The course starts in Thorne and heads south towards Hatfield. From there, riders will head north through Rawcliffe and onto Airmyn. Competitors will then hug the Humber River to Adlingfleet, before heading south through Suswoth, Beckingham and onto South Leverton. From here riders will complete the loop by heading through Retford and Bawtry, before arriving back in Thorne. Feed Station: Keadby – Clayworth

Distance: 65.7 miles

The route is identical to the 100 mile route up until East Ferry. At East Ferry riders will head West into Epworth and will complete the loop by passing through Belton and Sandtoft, before arriving back in Thorne. Feed Station: Keadby

Distance: 25.1 miles

The short distance follows the 100 mile route closely until Rawcliffe. At Rawcliffe, riders will head South through Moorends and then will finish in Thorne. Feed Station: Food on return to HQ

Event Details

What’s Included
  • Marshalled Course
  • Aid Stations
  • Refreshment Stations
  • Free Photo Downloads
  • Great Value Ride

Sportive HQ focus on great quality rides at great prices. With this in mind, medals and merchandise do not come as standard. If you would like one of these items, please select the appropriate ticket.

Raceday Logistics

06:30 - Parking Opens - Follow Marshals Directions
06:45 - Registration Opens Long and Medium Route
07:45 - Time Trial Riders - Ride Starts
07:50 - 08:15 Long Route Riders Start
08:15 - 09:00 Medium Route Riders Start
08:45 - 09:00 Registration Short Route
09:00 - 09:15 Short Route Riders Start
12:00 - Long Route Option Closes at 39.5 Mile Point
17:00 - Ride Finishes


  • At registration you will receive an envelope with your rider number, twist ties and a sticky back timing chip to put on your helmet.
  • Please arrive in plenty of time to complete the registration process

Kit List
  • Bike (in good working order)
  • Helmet
  • A towel and a change of clothes (there are showers at the end)

There is no fee for spectators to attend this event.


If you would like to volunteer for this event, please contact [email protected]

Frequently Asked Questions

Will there be medical support?
There will be 2 Motorbike Riders circuiting the course on the day from Medi- Bikes. They are both fully qualified paramedics and can assist with many incidents, whilst they are there just for the safety of all of the riders doing the event, if you are find yourself in an emergency situation please do not hesitate to call 999 if needed.
Is there an age restriction for this event?
Riders must be at least 14 to participate. If you are under the age of 18 please contact ([email protected]) to request a parental consent form in advance.
Will there be mechanical support available?
There will be a mechanical support HQ as well as mobile support from fully qualified cycle mechanics.

Meet the organiser

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Sportive HQ was formed by Matthew Porter in 2014, after having approximately 10 years experience in the organisation of various types of cycling events. It was very much the feeling that sportives were becoming more expensive over the last few years and that need not be the case, value for money can be put alongside quality events. Sportive HQ works alongside local clubs to produce events that riders will want to do every year. We listen to what riders want from an event and endeavour to meet those requests. At Sportive HQ we like to keep things simple, ample free parking, showers, changing rooms, a timed event with well spaced, well stocked feed stations and routes to challenge everyone of all abilities. Sportive HQ helps in the production of many local charity events and have helped raise, alongside local clubs, in excess of £50,000 for local charities over the last few years.

Other events from this organizer



The Flat 100 reviews (202)

4.9 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the 100 Mile in 2019

    This was my very first event with sportive HQ and I have to Honeslty say I absolutely loved and enjoyed it. The event was well organised with guidance and directions, plenty of informations given well ahead of time with an excellent price value for the event. I returned for flat 100 south and rode flat 200 with them. Will definitely recommend.
  • Did the 100 Mile in 2019

    Fab,organised,great value!Food lovely and medal lovely too.Scenery picturesque and highly recommend!
  • M

    Mick H

    Did the 100 Mile in 2019

    Great event, flat course. Good for a fast 100 miler. Organisations and directions are excellent. A+++
  • Did the 100 Mile in 2019

    Best organised sportive ive been to really enjoyed well signed posted great feeding statins along way .
  • S

    S Stinchcombe

    Did the 100 Mile in 2018

    My mate and I did this ride for the first time in 2018. We have done a few Sportives. This one is by far the best organised. Matt and his team are very professional. The feed stations, medical provision, signage are second to none.
  • R

    Rachel O

    Did the 100 Mile in 2018

    A great day on a bike for ALL - women, disabled riders - everyone. The course was well planned and well signposted
  • L

    L Stinchcombe

    Did the 100 Mile in 2018

    Excellent Event. Hubby and his friend rode it and I volunteered to help. I have volunteered at other cycling events. This is by far the best organised I've been to. Matt and his team are amazing. Everything is thought of. Nothing is too much trouble.
  • D

    David N

    Did the 100 Mile in 2018

    I've done 4 or 5 Sportive HQ events in the last 2 years. They're always well organised with great support from the organisers and a fun atmosphere. I'd recommend their events to anyone but particularly those who want to do their first sportive, as I was, due to the high level of organisation and making it an accessible event for beginners.
  • D

    Douglas M

    Did the 100 Mile in 2019

    Great course for a PB. The staff were friendly and helpful and made the event easy to find, park and get ready for. The only down side was a long wait to get started as the event is so popular there were hundreds queuing to get going. However once on the course it was great. For a big distance and trying to keep it flat the course was well planned. All in all a great day out.
  • T


    Did the 100 Mile in 2019

    A great day, a great route, and definitely a chance to get a personal best. Will be back again next year.
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