At the international level, he represents North Macedonia U21. He plays primarily as a Defender. His preferred foot is Left. His current market value is estimated at 175K .

His most recent move was a from FK Makedonija Gjorce Petrov to Sileks on 2026-07-01.

Throughout the North Macedonia First Football League 2025-2026, Mario·Richkov featured in 4 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.