Given he was a man at the first Capitolia in 86 A.D., his victories as a pais or ageneios are dated before that, within the timeframe given by Farrington, i.e. 81-86 A.D.
Dates and origin taken from Farrington (2012), 62 and 142 note 453. The dating is based on the presumed chronology of Artemidoros' career, which can be reconstructed from his mentioning of age categories and references to the first Capitolia and the Balbillea at Ephesus (I.Napoli 50 = IG XIV 746 = IAG 67); it is therefore possible to give some more exact dates for some of his victories, in which I have also followed Farrington above. The source gives a great many victories. - PK