Domercant was selected in the 2003
Continental Basketball Association (CBA) draft by the
Yakima Sun Kings. However, he decided to begin his professional career in Turkey for the 2003–04 season with
Pınar Karşıyaka. He moved to
Efes Pilsen in 2004 and played two seasons for the club. He departed Turkey following the 2005–06 season and moved to Greece, signing with
Olympiacos Piraeus. For the 2007–08 season, he joined
Dynamo Moscow. Between 2008 and 2010, Domercant played in Italy for
Montepaschi Siena, winning all three competitions both seasons with the club:
Italian Supercup,
Italian Cup, and the
Italian league championship. For the 2010–11 season, he moved back to Russia where he played for
Spartak Saint Petersburg, and then for the 2011–12 season, he continued in Russia playing for
UNICS Kazan. On August 21, 2012, Domercant signed with
Galatasaray Liv Hospital. However, in late November, he was ruled out for six months with a knee injury; he appeared in just one game. He returned to Galatasaray for the 2013–14 season, averaging 7.1 points and 1.3 rebounds in 19 league games. He also averaged 4.7 points and 1.2 rebounds in 27
EuroLeague games. On January 17, 2015, Domercant signed with
Juvecaserta Basket of the Italian
Lega Basket Serie A. In 12 games for Juvecaserta to finish the 2014–15 season, he averaged 10.9 points and 2.9 rebounds per game. On February 12, 2016, Domercant was acquired by the
Idaho Stampede of the
NBA Development League. On February 19, he made his debut for the Stampede in a 99–96 loss to the
Grand Rapids Drive, recording three points and one rebound in 11 minutes. On August 4, 2017, Domercant signed with Romanian club
U-BT Cluj-Napoca. On August 24, 2017, he parted ways with U-BT Cluj-Napoca before appearing in a game for them. Domercant left the team with a foot injury. ==National team career==