At international level, he features for Cambodia. His main role on the pitch is Goalkeeper. His estimated market valuation currently stands at 100K €.

His latest transfer saw him join Nagaworld FC from FFC National Sports Academy via on 2023-01-14.

In the Cambodian Premier League 2025-2026, Lyheng Reth played 19 matches, averaging 0 interceptions, 0 tackles, and 0 clearances per game.