[5] Blythe left British Cycling's Academy Programme by mutual consent in February 2008, and went to race in Belgium.

[8] Blythe returned to Belgium to ride for the DAVO squad in 2009, under the tutelage of Kurt Van De Wouwer, a former professional.

[2] In October 2012, Blythe sprinted his way to victory in the semi-classic Binche–Tournai–Binche, popping out of his teammate's wheel on a cobbled sector with 700 metres (2,300 ft) to go, edging Adrien Petit (Cofidis) and John Degenkolb of Argos–Shimano.

[16] With Tinkoff folding at the end of 2016, Blythe joined the Aqua Blue Sport squad for its inaugural season in 2017.

[21] In November 2019, Blythe announced that he was taking up a role with David Millar's cycling clothing brand CHPT3 as a product marketing executive.