Stefanos Tsitsipas did not drop a set all week on his way to glory in Marseille - repeating his 2019 feat as he triumphed again in France.
The Open 13 Marseille title will be between defending champion Stefanos Tsitsipas and Felix Auger-Aliassime on Sunday.
Gilles Simon claimed his 29th career win at the Open 13 Marseille, stunning Daniil Medvedev in the process.
It has not been the best of starts to 2020 for Stefanos Tsitsipas, but he will play in his first quarter-final of the season in Marseille.
Felix Auger-Aliassime is still waiting for a first ATP triumph, but Gael Monfils has two in two weeks after winning the Rotterdam Open.
Daniil Medvedev lost in the first round of the Rotterdam Open, with Roberto Bautista Agut and Grigor Dimitrov also losing on Wednesday.
After losing the first set and falling 2-0 behind in the second, Stefanos Tsitsipas rallied to beat Hubert Hurkacz.
There were no major shocks in the Open Sud de France on Tuesday, as Felix Auger-Aliassime eventually came through against Damir Dzumhur.
Teenager Felix Auger-Aliassime rocketed up the rankings last year and hopes to make his presence felt in grand slams in 2020.
The seeds continue to fall in Auckland, while Felix Auger-Aliassime put in an imperious showing in Adelaide.