Nam, ranked No. 464 in the world, lost to Sanjeev Shanmugam of India, world No. 968, 2-6, 6-2, and 3-6.
Nam was seeded No. 2 for the event, while his Indian rival was unseeded. Nam did not play at his best in the match.
Overall, he earned 13 points from three Men’s Futures events.
The tennis player will return to Vietnam to begin preparations for the qualifying round of Davis Cup Group III, Asia/Oceania zone in April.