Radoslav Konstantinov is a Bulgarian cyclist racer in the French road racing team Martigues SC DRAG Bicycles. He was riding DRAG in 2005 when he raced for Nessebar Cycling Club. Rado and the team Martigues SC DRAG Bicycles now race with DRAG Bluebird.

In 2015 — Radoslav Konstantinov  won the 4th place at Coupé de France 2015.

Rado Konstantinov participated also in the Summer Olympic Games in 2004 and 2008.

In 2017 — Rado won gold in the individual time trial and silver in the overall start of a men’s elite in the Tour of Bulgaria.

Radoslav won the second stage of the Bulgaria Tour 2017 with his DRAG Bluebird, he also won the gold medal in the time-trial and silver in the mass start of the National Championship held in june 2017.