Career
Siaudvytis is also a full-fledged member throughout most of his sporting career for Klaipėda Rowing Club (Lithuanian: Klaipėdos irklavimo centras). Siaudvytis qualified for the Lithuanian squad in the men"s double sculls at the 2004 Summer Olympics in Athens by finishing fifth in the B-final and eleventh overall from the 2003 World Rowing Championships in Milan, Italy with an entry time of 6:28.380. Earlier in the prelims, Keblys and Siaudvytis trailed behind the other three boats in heat three by a wide, nine-second gap with a fourth-place time in 7:07.13.