During his pro club playing career, Maskoliūnas won the championship of Europe's secondary level competition, the FIBA European Cup (FIBA Saporta Cup), in the 1997-98 season), and the championship of Europe's primary level competition, the EuroLeague, in the 1998-99 season.

Maskoliūnas was a member of the senior Lithuanian national team that won the bronze medal at the 2000 Summer Olympic Games.

While at Žalgiris, he was replaced under controversy, as he was fired during the 2010 LKL Finals series, by the club's then owner, Vladimir Romanov.

When he joined Žalgiris, he was an extremely skinny point guard, and due to his second name Maskoliūnas, which is a little bit similar to the English word "Muscles", he got the nickname of "Švarcas" (Arnold Schwarzenegger).

[2] More recently, a growing number of online Lithuanian basketball community members have dubbed him ‘’makaluotojas’’ (Eng.