Hoang won 6-2, 6-3 over Cedrik-Marcel Stebe in the first round of Metz on Monday.
The 23-year-old has taken a liking to the fast surface early in his career, and won his fifth match of the season, this time over No. 218 Stebe. Hoang won all nine of his service games in the match, and if he's able to keep up his 72 percent first-service percentage up, could be a real threat in the tournament. Next up, the Frenchman should fancy his chances against either Gregoire Barrere of Hubert Hurkacz in the second round.