Winner of two stages and of the general classification of the last Tour de l'Avenir, Johannessen is also relaunching the race for victory on the eve of the final time trial, half flat, half steep, in Alès (11 km).
Johannessen, 22, followed the attack by Australian Jay Vine 3 kilometers from the top of the last pass, short but steep (4.6 km at 9.6%).
Then he overtook him in the sprint, as well as the Italian Antonio Tiberi (Trek-Segafredo), 3rd, and the Frenchman Clément Champoussin, 4th.
Frenchman Benjamin Thomas (Cofidis) kept his leader's coral jersey and seven seconds ahead of Italian Alberto Bettiol (EF Education-EasyPost), now closely followed by Johannessen, 3rd overall 8 seconds behind Thomas .
But the Norwegian's value in the time trial remains a mystery: "I've only done two times in my life. Each time, I finished in the middle of the classification. It will be a new experience for me because I We'll do it full throttle," said Johannessen, whose Scandinavian team Uno-X hopes to be invited to the next Tour de France.
The fight for the general no longer concerns Thibaut Pinot (Groupama-FDJ).
Like the previous days, the Frenchman ended up placed without being an actor in the race, despite his team's desire to place him at the foot of the last difficulty.
Pinot only finished 18th in the stage and is 1 minute 35 seconds behind Thomas.
As for the Ecuadorian Richard Carapaz (Ineos), who had fallen heavily on Friday and finished in the last, he took a reassuring 24th place in this stage.
© 2022 AFP