[4] Competing professionally from 2006 to 2014, Guillou suffered an knee injury at the Tour de Langkawi.

Unable to perform at levels prior to his injury, he retired from serious professional cycling.

[5] He finished 47th in his last professional race at the Grand Prix Bruno Beghelli [fr].

Following his injury, Guillou occupied the position of sports advisor at the BIC 2000 [fr] before its dissolution in 2016.

This biographical article related to a French cycling person born in the 1980s is a stub.