2000 2nd Under 16 British Circuit Race Championships,
British National Circuit Race Championships 2001 1st
George Herbert Stancer 10 Mile Time Trial Championship 1st Junior 10 Mile Time Trial Championship
2002 1st Junior 10 Mile Time Trial Championship
2009 1st British National Team Time Trial, Shorter Rochford R.T., Team: Charles McCulloch, Mark Holton, Adam Duggleby
2011 1st British National Team Time Trial, ScienceinSport.com, Team: Alistair Rutherford, Alexander Royle, Adam Duggleby 2nd 20 km Scratch Race,
British National Track Championships 2012 1st 20 km Scratch Race,
British National Track Championships 2013 1st British National Team Pursuit,
British National Track Championships 2015 2nd, Road Race, UCI Para-cycling Road World Cup,
Maniago 3rd, Time Trial, UCI Para-cycling Road World Cup,
Maniago Gold, Time Trial,
2016 Summer Paralympics, Rio de Janeiro Bronze, Road Race, 2016 Summer Paralympics, Rio de Janeiro
2017 2nd, Time Trial, UCI Para-cycling Road World Championships,
South Africa Winner
British Best All-Rounder Time Trial Competition Gold, UCI Para-cycling Road World Championships - Men's individual Time Trial B, Maniago Italy 1st, UCI Para-cycling Road World Cup - Men's individual Time Trial B, Baie Comeau, Canada 3rd CTT National 50 Mile Time Trial 3rd CTT National 100 Mile Time Trial 1st CTT National 12 Hour Time Trial 2nd
British Best All-Rounder Time Trial Competition
2019 2nd, UCI Para-cycling Road World Cup - Men's individual Time Trial B, Baie Comeau, Canada Silver, UCI Para-cycling Road World Championships - Men's individual Time Trial B, Emmen, Netherlands 3rd CTT National 10 Mile Time Trial
2020 Silver, UCI Para-cycling Track World Championships – Men's individual pursuit B, Milton, Canada
2021 Gold, UCI Para-cycling Road World Championships - Men's individual Time Trial B, Cascais, Portugal == 2016 Summer Paralympics ==