For those who want to push their legs to the limit, here are some of the five hilliest sportives in the UK, as suggested by our Cyclosport Reviewers. See what the organisers and our writers have to say about some of the biggest tests on the sportive calendar.
Great Ormond Street Hospital Children's Charity Invites You to Saddle Up for Special London to Paris Challenges
Once again Great Ormond Street Hospital Children's Charity is inviting people to take part in its very special London to Paris Cycle Challenge for 2016, including a unique opportunity to experience the exciting finale of the Tour de France.
"When the idea was first mooted as to which 'Spring Classic' we would ride, Flanders got the thumbs up for several reasons. It was the 100th edition of the famous Belgian classic, the 25th edition of the sportive and it is only a short hop across the channel and into Belgium." Cyclosport's Caven O'Hara couldn't resist the lure of the cobbles for the Tour of Flanders Sportive.
The guys at SportiveUK were very sorry to hear about the sudden folding of the Cheshire Cat organisers Kilo to Go, so they'd like to offer 100 lucky riders a free alternative.
Disc brakes have been all over the news recently. On social media, you couldn't fail to see the image of Francisco Ventoso's mangle shin, allegedly the result of a collision with a disc brake during a crash in Paris-Roubaix.
By the end of 2016, Marie Curie will have fundraised more than £1.5million over the past five years of the Marie Curie Etape Caledonia. The next instalment of the 81-mile closed road cycling sportive, which takes place in Perthshire on Sunday 8th May, will see another 5,000 entrants take to the start line, 20% of which will be raising money for Marie Curie.
Cyclosport's Jennifer Trotman gave up her Easter Monday to brave the torrential rain and wind and ride the Cotswold Spring Classic. It was worth it all for the Easter Egg!
This intimate 165km ride takes place two weeks after the iconic Paris-Roubaix. The event is restricted in numbers and follows the HotChillee event format of flagged pavé race section, rolling road closures, full service corp and small seeded speed groups.
Cyclosport's Jennifer Trotman takes on her first sportive of the year, in the shape of the Meon Vale Spring Classic in Stratford Upon Avon, on a very very cold day.
Entry to the Severn Bridge Sportive is now open online. Now in its sixth year, the Severn Bridge Sportive is a fully supported and well established event in the UK Sportive calendar:
The Marmotte Ecosse powered by Braveheart: Colour Run, Chrono and Gran Fondo will take place on 23rd - 25th September, all on closed roads featuring spectacular scenery.
Following the sell-out success of Monday's Cotswold Spring Classic, it's time to look forward to the other end of the season (!!) and the annual season closer - the Cotswold Autumn Classic. Taking place on Sunday 2nd October, the Autumn Classic is fast becoming a favourite with riders wanting that last big ride before the season ends.
Hay-on-Wye based Drover, who have been organising events for over a decade from their base on the edge of the Brecon Beacons, have taken over the 'Devil' sportive series from Red Kite Events for 2016. The series kicked off last month with the Shropshire Devil, drawing entrants from as far away as Scotland for a spring sportive in glorious sunshine.
Wheels in Wheels Events offer a great way to start your season with a fast, flat century on easy terrain around the Cambridgeshire and surrounding counties on Sunday 10th April 2016. The popular Richardson's Rumble sportive returns to St Ives Cambs for the eighth consecutive year on Sunday 10th April with backing from Kross Bikes who will have display bikes at the event.
Evans Cycles RIDE IT launches its brand new Store Rides mini sportive series starting on this Sunday, April 3rd 2016 in Cheltenham. The rides, typically 30 miles/50 kilometers in length, are great for both people new to sportives and those training for longer events.