^According to Jeffry O. Segrave, over the course of the following century the libretto was set to music more than 50 times by 47 different composers ("The special case of Pietro Metastasio's L'Olimpiade and the story of the Olympic games", in Anthony Bateman and John Bale (editors), Sporting Sounds. Relationship between Sport and Music, Abingdon-on-Thames, Routledge, 2009, p. 116, ISBN0-203-88797-2). However, according to Claire Genewein, there were "over a hundred" renderings of Metastasio's libretto in music (On completing the score of l'Olimpiade, essay in the booklet accompanying the Dynamic DVD of L'Olimpiade by Baldassare Galuppi conducted by Andrea Marcon). Don Neville in his article on Metastasio in the New Grove Dictionary lists 55 settings, not counting different versions of the opera by the same composer (III, p. 356).
^Donald Jay Grout and Hermine Weigel Williams, A Short History of Opera (4th edition), New York, Columbia University Press, 2003, p. 229, ISBN978-0-231-11958-0.