Ümit Davala played with
VfR Mannheim, ASV Feudenheim, Türkspor Mannheim, Afyonspor, Genclerbirligi, Diyarbakırspor and
Istanbulspor AS before joining
Galatasaray in
1997. He won three successive
Turkish champion. In
2000, he helped the club to win
Turkish Football Cup by scoring two goals in the final against
Beşiktaş. In same year, he helped the club win the
UEFA Cup final against
Arsenal and the
European Super Cup against
Real Madrid.
In
September 2001, Ümit Davala transferred to
A.C. Milan in a 5 million euro deal. He made the transfer because he wanted to follow his former coach at Galatasaray,
Fatih Terim, who had been named head coach of Milan. But in November, Terim was fired and replaced by
Carlo Ancelotti, after which Ümit lost his first-team place. In the summer of
2002, he was sold to
Internazionale in exchange for
Dario Šimić but was immediately loaned back to Galatasaray. In
July 2003, Ümit was loaned to
Werder Bremen, helping the club win the
German Championship and
German Cup. In July
2004, he was signed permanently, but injuries limited his appearances. A hip injury suffered in October 2005 proved too difficult, and over the winter break of the 2005/2006 season he was released by the club, and retired from professional football.