Garrigou was for the teams Peugeot (1907-1908; 1913-1914) and Alcyon (1909-1912) active. His biggest success was the overall winner of the Tour de France 1911, in which his rival Paul Duboc had been weakened by a mysterious food poisoning. He started eight times overall in the Tour, and finished it even eight times, and he always placed himself untern the top five. He was also the only rider in the peloton, who climbed the Tourmalet, without dismounting once. The First World War ended in 1914 his career as a professional athlete. He was drafted as a soldier; after the war he worked as a merchant.
Since 2011, the Tour victory by Gustave Garrigou marks the 100th, this anniversary will be celebrated in particular during the 10th stage of the Tour de France 2011 in its hometown Vabre - Tizac.
- Victory at the Tour of Lombardy (1907 )
- Victory in the Paris- Brussels ( 1907)
- Victory at Milan-San Remo (1911 )
- French road champion (1907, 1908)