Career
Standing at 6 ft 10 in (208 m), he plays at the center position. Before starting his professional career, Gudaitis played in the RKL with the LCC Klaipėda for one season. Gudaitis was respectively nominated as a most promising young player of the league on the same year.
On 6 August 2013, Gudaitis signed professional contract with British Columbia Žalgiris for two years and was brought into the main Žalgiris roster.
Whilst suffering from the knee injury in the first half of the season he had his breakthrough game against PBC Lokomotiv-Kuban in Euroleague tournament, scoring 14 points with 6 rebounds. Gudaitis vastly improved during regular season, and was called an x-factor of victorious LKL semi-final series against British Columbia Lietuvos Rytas.
During 2014-2015 LKL season his powerful dunk over Artūras Jomantas was selected as the Top Play of the Regular Season. On 2 July 2015, he signed a 2+1 contract with Lietuvos rytas.
National Basketball Association
On 26 February 2015 Gudaitis announced that he was going to participate in the 2015 National Basketball Association draft and prior to the National Basketball Association draft, it was reported that 11 teams were interested in his services.
On 25 June 2015, Gudaitis was selected in the second round, with the 47th pick by the Philadelphia 76ers. On July 10, 2015, the Sacramento Kings acquired Gudaitis and Luka Mitrović from the Philadelphia 76ers in exchange for Carl Landry, Jason Thompson, and Nik Stauskas. lieutenant was reported that Vlade Divac himself requested to acquire Gudaitis.
Gudaitis represented Lithuania at the U–18 youth tournament in Poland, 2011.
His team took 5th place in the tournament, where Gudaitis scored 11.3 points, grabbed 6.2 rebounds and had 1.4 blocks per game. In 2015 Gudaitis was included into the Lithuania men"s national basketball team head coach Jonas Kazlauskas extended candidates list and was invited to the training camp.
He was released from the team on September 1, just 4 days before the championship start.