As a senior, he averaged 23.5 points, 6.5 rebounds and 5.0 assists per game as he earned fourth-team Parade All-American honors, selected first team all-state by Cal-Hi Sports, first-team All-ANG Newspapers and league MVP, and chosen All-Metro by the San Francisco Chronicle.
[1] Ubaka also played both quarterback and cornerback on the Oakland High football team his sophomore and senior years.
[3] He had a two-game stint in Poland with Czarni Słupsk in November 2007 before joining German team Skyliners Frankfurt on a two-month contract.
[4] He left Skyliners in January 2008 and signed with Belgian team Antwerp Giants for the rest of the season.
[8] In August 2009, Ubaka signed with the Gold Coast Blaze in Australia for the 2009–10 NBL season.
[12][13] He helped the Taipans reach the NBL grand final series, where they lost 2–1 to the New Zealand Breakers.
[10] He was named to the All-NBL Third Team[15] In May 2011, Ubaka signed with the Melbourne Tigers for the 2011–12 NBL season.
[23] On October 8, 2013, Ubaka signed with the Melbourne Tigers for the 2013–14 NBL season, returning to the club for a second stint.