[3] Elmas scored his first Napoli goal on 3 February 2020 to help the club to a 4–2 victory over Sampdoria, and secure their third win in a row in all competitions.

[4] On 19 December 2021, Elmas scored the winner for Napoli in a narrow away win against AC Milan, taking over second place in Serie A.

[10][11][12] In July 2017, it was reported that then-coach of the Turkey national football team, Fatih Terim, had tried to call him up, but Elmas decided to represent his birth country.

[14] On 11 June 2017, at the age of 17, Elmas debuted for the Macedonian senior squad in a FIFA World Cup qualifier against Spain as a half-time substitute for Ostoja Stjepanović.

[16] The same year in November 2021, Elmas scored a brace in a 3–1 victory against Iceland, helping the team secure a runners-up spot in Group J, leading North Macedonia to a World Cup play-off.