[3] The following year, now coached by Alberto Castagnetti, he established the new short course record at Bonn in the 200 and 400 m freestyle.

[3] At the 1989 European LC Championships, held again in Bonn, winning the gold medal in the 100 and 200 m freestyle; in the latter, with 1'46"69, he set the new world record, which remained unbeaten for 10 years, until Grant Hackett improved it at Brisbane in 1999.

[4] Lamberti participated in the 1992 Summer Olympics, obtaining a fifth place in the 4x200 m relay as his best results.

[3] He retired from professional swimming in 1993, and, from 2003 to 2008, was a member of the city's council of Brescia, with responsibility of sports and recreation.

[6][7] His son was birthed by his wife, Tanya Vannini, who was also a competitive swimmer.