These are the works I consulted while writing A History of Sports and Hook-up Culture. Translations are adapted from the Loeb Classical Library.
Juvenal, Satires, 6. (a hilarious read – highly recommended!)
Livy, Ab Urbe Condita, 1.9.
Ovid, Ars Amatoria, 1.
Pindar, Olympia, 1, 10.
Crowther, N. (1980). Nudity and Morality: Athletics in Italy. The Classical Journal, 76(2), 119-123.
Lear, Andrew (2014) ‘Eros and Greek Sport’ in Paul Christesen, Donald G. Kyle (eds.) A Companion to Sport and Spectacle in Greek and Roman Antiquity, Chichester: Wiley Blackwell, 246-257.
Miller, S. (2001) Excavations at Nemea II: The Early Hellenistic Stadium. Berkeley.
Newby, Z. (2002). Greek Athletics as Roman Spectacle: The Mosaics from Ostia and Rome. Papers of the British School at Rome, 70, 177-203.
Scanlon, Thomas F. (2002) Eros and Greek Athletics, New York: Oxford University Press.
Sinclair, Bell (2014) ‘Roman Chariot Racing: Charioteers, Factions, Spectators’ in Paul Christesen, Donald G. Kyle (eds.) A Companion to Sport and Spectacle in Greek and Roman Antiquity, Chichester: Wiley Blackwell 492-505.
Vernant, Jean Pierre (1991) Mortals and Immortals, Princeton: Princeton University Press, 153ff.