[1] She is a two-time Olympian (2004 and 2008), a multiple-time German diving champion, and a four-time consecutive gold medalist in the women's synchronized platform at the European Aquatics Championships (2002, 2004, 2006, and 2008).

She also finished in sixth place, along with her partner Nora Subschinski, in the women's synchronized platform, by four points behind the Mexican team (Jashia Luna and Paola Espinosa), with a score of 303.30.

[4] In 2007, Gamm reached her breakthrough season in diving, when she and her partner Subschinski earned a bronze medal for the same discipline at the FINA World Championships in Melbourne, Australia, accumulating a score of 306.63 points.

[5][6] At the 2008 European Aquatics Championships in Eindhoven, Netherlands, Gamm captured her fourth consecutive gold medal (the first being done in 2002), along with her partner Subschinski, in the women's synchronized platform, with a total score of 336.63.

[8][9] A week later, Gamm placed last out of twenty-nine divers in the preliminary round of the women's platform event, by six points behind Russia's Natalia Goncharova, with a total score of 234.30.