G. Suetonius Tranquillus, De Vita Caesarum (Maximilian Ihm, ed.) from The Perseus Digital Library

Liber I: Divus Iulius

39.2: ludis Decimus Laberius eques Romanus mimum suum egit donatusque quingentis sestertiis et anulo aureo sessum in quattuordecim <e> scaena per orchestram transiit. circensibus spatio circi ab utraque parte producto et in gyrum euripo addito quadrigas bigasque et equos desultorios agitauerunt nobilissimi iuuenes. Troiam lusit turma duplex maiorum minorumque puerorum.

G. Suetonius Tranquillus, The Lives of the Caesars, (J.C. Rolfe, tr.) from the Internet Ancient History Sourcebook (Paul Halsall, ed.)

Book I: The Deified Julius

39.2: During the plays Decimus Laberius, a Roman eques, acted a farce of his own composition, and having been presented with five hundred thousand sesterces and a gold ring[...], passed from the stage through the orchestra and took his place in the fourteen rows[...]. For the races the circus was lengthened at either end and a broad canal was dug all about it; then young men of the highest rank drove four-horse and two-horse chariots and rode pairs of horses, vaulting from one to the other. The game called Troy was performed by two troops, of younger and of older boys.