Gabrielius Maldūnas was born in Panevėžys, Lithuania where he went to school and played basketball until 2008. In the summer of 2008 he went to the US to study and play basketball at Holderness School. He played there for three years and each year his team made the NEPSACplayoffs, reaching the finals once. His senior year of high school Gabas was the captain of the team and averaged 18 points and 8 rebounds.
College career
Gabas had a very successful career at Dartmouth College, appearing in 102 games for the Big Green. He is one of four Ivy League players to ever score 1,000 points, and record over 700 rebounds, 100 assists, 100 blocks and 100 steals. During his sophomore year Gabas was selected to the All-Ivy second team. He continued playing strong during his junior year, but his season was cut short due to an ACL injury on January 20, 2014. He came back for his senior year and helped the Big Green achieve their best record since 1998-1999 season. He was selected to the All-Ivy second team for the second time in his career along with his teammate Alex Mitola. Maldunas' game-winning shot in the last game of the season against Yale was on SC Top 10 and it helped the Big Green to get invited to the first post season tournament since 1959. However, they lost to Canisius in the first round of the CIT Tournament. Gabas finished his Dartmouth career 22nd on the scoring list, 3rd in career blocked shots and 4th in rebounds. He was the first Dartmouth player in 56 years to record 1,000 points and 700 rebounds and only the second ever to record 100 career blocks and 100 steals. In June 2015 he graduated with an Economics degree and went on to play professional basketball in Europe.
On 28 August 2015 Maldunas signed to play in the second-tier league in Spain for CB Peñas Huesca. During the regular season he averaged 10 points and 6.6 rebounds while helping a very young and inexperienced Peñas team record 16 wins and 14 losses and make the playoffs as the 7th seed. In the playoffs the Peñas made it all the way to the finals after beating Oviedo CB 3-1 in the first round and CB Miraflores also 3-1 in the semifinals. However, the team lost the final series 3-0 to Club Melilla Baloncesto.
On July 7, 2016, Maldūnas signed with the 2016 LEB Oro champions Palencia Baloncesto. He led his team to the finals by scoring 20 points and getting 8 rebounds in the series deciding game against Oviedo CB. The team lost in the finals to CB Miraflores.
