[9] On 24 September 2019, Gecevičius signed a one-year contract with Aris Thessaloniki of the Greek Basket League.

[10] On 9 July 2020, Gecevičius signed a one-year deal with Juventus Utena of the Lithuanian Basketball League (LKL).

[12] On 4 October 2023, Gecevičius signed with M Basket Mažeikiai of the Lithuanian Basketball League (LKL).

[13] At the 2010 FIBA World Championship, Gecevičius played for the senior Lithuanian national basketball team, which won Bronze medals.

He was also a candidate to be on Lithuanian roster for EuroBasket 2013, however on August 22, 2013, it was announced that he left the national team, due to head coach Jonas Kazlauskas' decision.