A full field of 150 riders will tackle the VTTA London & Home Counties 10 on Sunday, which uses a course near Tring in Hertfordshire.
Richard Oakes (Team Ohten Aveas) starts as last man while Helen Reynolds (Hemel Hempstead CC) is the last woman rider away.
Under-23 rider Theo Tadros (trainSharp) starts as last man in Saturday’s VTTA (Kent Group) 10 taking place on the Q10/1 near Ashford.
Tadros finished fifth in the Brighton Mitre CC hill 10 on his last outing and will look to go better on this occasion.
Competition could come in the form of Nicholas Fennell (Thanet RC) who won the VTTA (Kent Group) 50 last time out.
On a rare open outing Hannah Graveney (Liv AWOL) is due to compete in the women’s event.
Adam Duggleby (Chapeau! Vive Le Velo) will be looking to add another victory to his collection when he starts as last man in Saturday’s Rossington Wheelers 10 taking place near Doncaster.
Duggleby, who is preparing for the Paralympic Games, has 10 wins to his name already this season and will be looking to make it 11 on the O10/1.
John Brearley (Squadra RT) finished second in the Vive Le Velo 10 and will be looking to challenge along with Ben Turner (Dinnington Road Club) amongst others.
Beth Grogan (Selby CC) will head the women’s field but will have to see off the challenge of Jo Corbett (Sherwood CC) and Amanda Dean (West Hull Ladies).
National Circuit and 100 Mile Champion Christopher Fennell (The Independent Pedaler – Nopinz) continues his season at Saturday’s North Hampshire RC 10 on the H10/8 between Farnham and Alton.
Fennell is one of few unbeaten riders this season with 11 wins from as many rides.
Meanwhile, the women’s event will see Harriet Hernando (Will Houghton Racing Team) take on the likes of Ali Walters (Velo Club Godalming & Haslemere) and Mandy Hibberd (Rapha Cycling Club).
The following day Fennell will be hoping to make it a weekend double in the Kent CA 25 near Canterbury where he is due to compete alongside team-mate Alex Clay.
A strong field lines up for Sunday’s East Lancashire Road Club 25 taking place on the L2524 near Kendal.
Kamil Waligora (East Lancashire RC) starts as last man having placed third in the South Pennine RC 25 in 51-03.
His minute man Grant Bigham (WattShop) could provide competition while veteran Erica Booth (Lancashire RC) will be looking to match her win in the Velo Club Cumbria 25 last month.
A small but talented field lines up for Sunday’s Godric C.C 50 taking place near Beccles in Suffolk.
Joe Skipper (Team Skipper) starts as last man looking to improve on his third in last month’s C.C Breckland 50.
Lloyd Chapman (Loose Cannon's Conditioning) has four wins to his tally this season but has not ridden an open over 50 miles this term.
After winning the Wolsey R.C 25 earlier this month veteran Hannah O’Brien (Loose Cannon's Conditioning) is also testing herself over the longer distance.
Meanwhile, in Scotland, Tommy Murray (GS Metro) will be scratch man in the keenly fought Dundee Thistle 50.
Murray is searching for his first win of the season after recording three second placed finishes, including in last week’s Merlin Classic Series.
Veteran Douglas Watson (GTR - Return To Life) won the veteran’s category in last week’s Merlin Classic Series and provide tough opposition for the win.
The women’s event sees Carol Middleton (Ythan CC) start last but Patricia Baird (Ecosse Performance Cycling Coaching) is amongst her competition.
After winning his last seven events Christopher McNamara (Nuun-Sigma Sport-London RT) will be hoping for a fast day on the F2/50 for the Shaftesbury CC 50.
However, Liam Maybank (Twickenham CC) starts as last man, while Alice Lethbridge (Drag2Zero) and Fiona Sharp (Chapeau! Vive Le Velo) are amongst the women competitors.
Finally to compete the weekend the Otley CC 10 takes place on the A168 between Boroughbridge and Wetherby.
Mark Wolstenholme (Swift Racing) starts as last man while Kate Richardson (Glasgow Triathlon Club) heads a strong women’s field.
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