Vimond is notable for being the first French competitor to win an FIM motocross world championship.

[2] He made his motocross world championship debut in 1979 and competed in the 125cc class for the next four seasons riding a Yamaha but, was plagued by injuries and a sixth place in the 1982 125cc world championship would be his best result in the smaller class.

[1][2] As he was being lowered by wires to the stage while astride his motorcycle, something went wrong and he fell almost nine meters, breaking his back.

[14] He returned to the 250cc motocross world championship in 1990 riding a Suzuki but, persistent injuries forced him to announce his retirement from competition.

[15] After his retirement, Vimond became a motocross coach, helping young riders such as Sebastien Tortelli, Stephane Roncada, David Vuillemin and Romain Febvre.