bristol city became the first side in the football league win promotion as they booked their place in next season 's sky bet championship by battering bradford 6-0 .
the robins reached 92 points with their 27th league victory of the season at valley parade thanks to james tavernier 's brace and further goals from joe bryan , luke ayling , aden flint and aaron wilbraham .
tavernier , who went up as a rotherham player out of league one last year , fired in the opener after his initial effort was blocked before bryan jumped highest to double bristol city 's advantage .
ayling 's fortuitous effort made it 3-0 after the break , flint then headed a free-kick