Career
Tumba made his professional debut in the 2011-2012 season with Belfius Mons-Hainaut. He signed a new 2-year contract in May 2014. In June 2015, Tumba signed a 2-year contract with Belgian Eurocup team Proximus Spirou Charleroi.
He represented Belgium at the 2015 EuroBasket where they lost to Greece in eighth finals with 75–54.