Career
He was a 6"4" (193m) tall shooting guard. Sirtautas started his professional career in Atletas Kaunas in 1989. After a few seasons with the team, he became a leader and, playing alongside Saulius Štombergas and Žydrūnas Ilgauskas, managed to lead the team to the LKL Finals twice.
During his last season with the team, he averaged 15 points per game.
After his successful season, Lithuania national team coaches invited Sirtautas to the training camp for the upcoming EuroBasket, but he did not make it into the final roster. In 1995, he moved to his former rival Žalgiris Kaunas.
He was one of the main contributors to the team, averaging more than 10 points per game over the next three seasons despite having to share his minutes with stars like Rimas Kurtinaitis, Darius Lukminas and Ennis Whatley. In 1998, Sirtautas moved to Slovakia and played for Slovakofarma Pezinok in the Saporta Cup.
He recorded 7.8 points and 1.2 steals per game in that tournament.
Returning to Lithuania the following season, Sirtautas signed with Suvalkija Marijampolė. However, the team bankrupted at the end of the season, and he was forced to look for a club elsewhere. In 2000, he moved to China and signed with Junan Jinan of the Chinese Basketball Association.
During the 2001-2002 season, he played alongside fellow Lithuanians Rolandas Urkis and Martynas Purlys.
In March 2002, Sirtautas moved back to Lithuania and finished the season with Alita Alytus. Sirtautas played for the Estonian club Audentes Tallinn during the 2002-2003 season.
In April, he once again moved back to Lithuania and, after playing two more seasons, retired in 2005. Sirtautas coached Atletas Kaunas for the 2006-2007 season.
He was also the head coach of the Lithuanian U-16 team, which participated in the 2011 International Basketball Federation Europe Under-16 Championship.
He recently coached at the Arvydas Sabonis Basketball School and British Columbia Nevėžis of the Lithuanian Basketball League.