During the second part of 2004/2005 season he was used mainly as a substitute and he made 8 appearances, scoring 2 goals (for the 2-1 victory over Bulgarian side PFC Cherno More Varna in a match played on Georgi Asparuhov Stadium).
He scored a goal against the Dutch side SC Heerenveen in UEFA Cup match during 2005/2006 season (Levski lost 1-2).
On 30 June 2009, just a day before his contract expired, Ivanov was sold to PFC Montana.
[1] He established himself as first choice under manager Ivaylo Petev during Ludogorets' maiden season in the A PFG.
On 23 May 2012, in the last league match of the season Ivanov scored the only goal in the 1:0 win over CSKA Sofia from a free kick, which enabled the team from Razgrad to claim the first A PFG title in its history.