On the night of the final Cogoi performed 15th in the running order, following Switzerland and preceding Spain. Only an audio recording of Cogoi's performance survives as it is believed that the video master of the 1964 contest was lost in a fire at the Danish TV archive in the 1970s, and no other broadcaster had recorded the entire programme. Cogoi's performance on the night was delayed due to the invasion of the stage after the Swiss performance by a protestor (apparently under the mistaken apprehension that the Spanish song was next on stage) brandishing a "Boycott Franco and Salazar" banner.
Each national jury awarded 5-3-1 points to their top three songs, and at the close of the voting "Près de ma rivière" had received 2 points (1 each from Monaco and Portugal), placing Belgium joint 10th (with the Netherlands) of the 16 competing entries. The Belgian jury awarded its 5 points to runaway contest winners Italy.