He led Romania to a seventh-place finish at the 1976 Winter Olympics, and the team's only appearance in the top tier of the World Championships in 1977.

[4][9] Varga won nine national titles and seven Romanian Hockey League championships with the Steaua Rangers,[10][11] and retired from playing in 1979.

[16] Scoring two goals at the 1964 Winter Olympics, Varga helped the Romanian national team to a fourth-place finish in Group B and twelfth place overall.

[18] Varga scored two goals and had two assists in ten games played,[3][5] in Romania's only appearance in the top tier of the World Championships.

[18] In a consolation round game versus the United States national team on 5 May 1977, Varga scored one goal and added two assists in a 5–4 victory.

[2] In a 2024 interview, Varga said his fondest hockey memories included winning the 1966 Universiade silver medal, and scoring a goal against the United States in 1977.

[1][3] He did not attend for health reasons, and submitted a thank you letter which stated that hockey was his "greatest passion" since childhood, that made him "disciplined and focused by giving me goals in life".