In the first set, Nam, who is ranked No. 629 in the world, easily defeated Linh 6-2, 6-1 in just one hour and 11 minutes of play.
The good result helped Nam earn two points, inching closer to the world’s top 600.
In the next match, Nam will face off on November 4 with world No. 714 Couacaud Enzo of France.
The 21-year-old French player ranked No. 206 in the world last year.