[1][6] Riding for the Yamaha of France racing team in the 1997 125cc world championships, he ended the year ranked 6th in the final overall standings.
[6][10] 1998 marked the best year of his 125cc career as, he won three consecutive Grand Prix races as well as a fourth victory later on to end the season ranked second in the 125cc motocross world championship behind the defending champion Alessio Chiodi.
[11][12] Vuillemin moved up to the 250cc class in 1999 appearing in five rounds of the AMA Supercross championship including his best result at the San Diego Supercross where he led the main event for 14 laps ahead of Jeremy McGrath and Ezra Lusk on a mostly unmodified Yamaha YZ 250 and, finished the race in fourth place.
[16] At the fourth round in Phoenix, Vuillemin came from behind to pass several top competitors including the previously dominant McGrath to score an impressive victory.
[6][8] He followed with another victory at the next race at High Point Raceway but, then Carmichael dominated the remainder of the season with Vuillemin ranked fourth in the final overall standings.
[18] He scored a third and fourth place results to help the French team win their first Motocross des Nations event since its inception in 1947.
[19] Vuillemin raced a limited season in the AMA 250cc outdoor motocross championship after re-injuring his shoulder and forcing him to have surgery.
[1][4] He was seriously injured at the Millville round of the 450cc outdoor motocross championship and finished the season ranked tenth in the final overall standings.
[4] In the 2008 season, Vuillemin earned his way back to a Factory team racing for the Suzuki factory racing team managed by former world champion Roger De Coster in the Supercross and 450cc outdoor motocross nationals however, his season was marred by injuries and he made the decision to retire after finishing 8th in the 2008 450cc Supercross championship.
[1][8][22] Vuillemin then reversed course and decided to return to Europe to compete with a Kawasaki in the MX1 Motocross World Championships for one final season in 2009.
[26] 2009 French National MX1 Champion 2008 2007 AMA Supercross Top Privateer 6th in AMA SX Series 2006 1st Place - Barcelona Supercross 1st Place - Fuente Alamo Supercross 6th Place - AMA Supercross 10th Place - AMA Motocross 2nd Place - Spring Creek MX Park 3 Top-Five finishes in the AMA Supercross and Outdoor Nationals 12 top-ten finishes 2005 Team Yamaha USA 4th Championship US SX 250 4th AMA MX Championship 2004 Team Yamaha USA 4th Championship US SX 250 4th Championship US MX 250 2003 Team Yamaha USA 7th Championship US SX 250 6th Championship US MX 250 2nd place a US Open Las Vegas King Of Paris Bercy Supercross 2002 Team Yamaha USA 2nd Place AMA SX 250 2001 Team Yamaha USA 8th Championship US SX 250 5th Championship US MX 250 King Of Supercross de Paris Bercy (250) Winner of the SX Stade de France in Paris, France Winner Motocross des Nations (with Seguy and Demaria) 2000 Team Yamaha USA Winner SX US 250 : 4 victories 4th MX US 250 : 2 victories at Sacramento (CA) and Mt.