In the 2016–17 season, Ernak led his team Sakarya BB to promotion to the first tier Basketbol Süper Ligi for the first time in club history.[1]
On December 1, 2018, Ernak parted ways with Sakarya after disagreements.[2] On December 12, 2018, Ernak signed a two-year contract with Darüşşafaka.[3] Darüşşafaka also played in the EuroLeague which meant the EuroLeague debut for Ernak.