It was confirmed on 29 June 2011 that Filip and his teammates from Pro Recco will play in Adriatic Water polo League.

[9] On 22 October Filipović scored two goals in the first round of the Euroleague Group in an easy 13–5 win over Spartak Volgograd.

On 29 October, in the Adriatic League seventh round 13–9 home win against Mladost, Filipović scored two goals.

[14] On 25 February, in the last round of the Euroleague group stage, Filipović was the top scorer in the 18–7 away win against Spartak Volgograd with five goals.

[15] Four days later, Filipović scored another five goals but in the Adriatic League fourteenth-round game behind, in a 21–5 easy home win over Mornar BS.

On 19 January, in the third game of the tournament, Filipović scored two goals in a big 15–12 victory against rivals and defending European champions Croatia.

He will also remember the match for the unsportsmanlike conduct of Croat Nikša Dobud who deliberately struck him from behind, resulting in serious bruising underneath Filipović's right eye.