japan j1 leagueWhen are the Japan J1 League Predictions available? You can track down our J1 League tips and predictions on this page, predictions are posted 4 days before any J1 League event. UsingAfter 178 matches played in the Japanese J1 League, a total of 402 goals have been scored (2.26 goals per match on average). The menus above provide access to league-level statistics