In 2016, Gaudu won the
Tour de l'Avenir, the most prestigious U23 cycling race. In addition to this he won the
Peace Race U23 and finished 5th in the
Tour de l'Ain, a UCI 2.1 cycling race. These successes earned him an initial two-year contract with UCI WorldTeam . In July 2018, he was named in the start list for the
2018 Tour de France. In October 2020, he was named in the startlist for the
2020 Vuelta a España. The 2020 Vuelta was his strongest performance in a
Grand Tour thus far in his career as he won stage 11, as well as stage 17, and finished the race in 8th place overall. On stage 3 of the
2022 Critérium du Dauphiné Gaudu was five or six riders deep as the sprint for the finish line began.
Wout Van Aert overpowered all the other riders and as the finish approached began to celebrate when he noticed Gaudu flying past him out of the corner of his eye and immediately lowered his hands knowing he had been bested. Gaudu slowed to a stop a few hundred meters past the finish line and celebrated with his teammates. and leaving him level on time with
Jonas Vingegaard who was in the red jersey at the end of the stage. The next stage, he finished ahead of Vingegaard in the bunch, moving him into the red jersey. Vingegaard moved back into the jersey on the following stage. ==Major results==