The Flat 100

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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.
100 Mile, 65 Mile, 25 Mile, and 1 more
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Sat, 11 Jun 2022
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Thorne, United Kingdom
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(209 Reviews)
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The event experience

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5m elevation gain per km

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Where and when
Trinity Academy, Thorne, Church Balk, Thorne, Doncaster DN8 5BY, UK
Start times
Sat, 11 Jun 2022
100 Mile:
7:50am |
65 Mile:
8:15am |
25 Mile:
9:00am |
Races summary
Here's what races are available for The Flat 100
100 Mile
65 Mile
25 Mile
£27.50 - £40.00
Route information
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
Organiser route images
What's included
  • Marshalled Course
  • Aid Stations
  • Refreshment Stations
  • Free Photo Downloads
  • Great Value Ride
How to get there
Trinity Academy, Thorne, Church Balk, Thorne, Doncaster DN8 5BY, UK
Get full directionsExternalLink
Parking is available free of charge through 3 separate parking areas adjacent to the venue with marshals directing you to the nearest car park on the day.
There is a parking map included above for ease of access.
Event day 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
Race Packs
Race packs including race numbers will be posted to entrants before the event and all start times will be allocated before the event.
Age Requirements
Entrants must be 14 and older to enter, and those between 14 - 18 must be accompanied by an adult.
Sportive HQ's logo
Sportive HQ
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.
View more Sportive HQ eventsExternalLink
Spectator Info
There is no fee for spectators to attend this event.
Kit List
  • Bike (in good working order)
  • Helmet
  • A towel and a change of clothes (there are showers at the end)
Will there be medical support at The Flat 100?
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 The Flat 100?
Riders must be at least 14 to participate. If you are under the age of 18 please contact ( to request a parental consent form in advance.
Will there be mechanical support available at The Flat 100?
There will be a mechanical support HQ as well as mobile support from fully qualified cycle mechanics.
209 reviews
ActionHighFiveHelpful volunteers
ThumbsUpWell organized
ParkingGreat parking
Did the race in 2022
Food stations were well equipped, a very well organised event. The windy weather was tough but that cannot be ordered on the day 😀 May be a small bottle of water at the finish would be good. I would recommend this event.
Did the race in 2022
Some of the road conditions were quite bad for riding at speed but the course was well sign posted.
Did the race in 2022
Definitely worth doing. Great sense of achievement, supported by good organisation.
Did the race in 2022
This was my first sportive, I was amazed how well organised everything was. Especially the feed stations and how well marked out the route was.
Did the race in 2022
Great event well organised! 👍
Did the race in 2022
The course had very long stretches of straight road, one section was very fast (50mph traffic) I don’t know the area but it was extremely windy (not that anyone could change that!) good aid stations though and very easy and convenient start and end location along with good communication from the organisers
Did the race in 2022
Only criticism, A metallic medal would have been nice.
Did the race 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 race in 2019
Fab,organised,great value!Food lovely and medal lovely too.Scenery picturesque and highly recommend!
Mick H
Did the race in 2019
Great event, flat course. Good for a fast 100 miler. Organisations and directions are excellent. A+++
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