The reigning champions entering the season were Northampton Saints, who had claimed their first title after defeating Saracens in the 2014 final.

Saracens won their second title after defeating Bath in the final at Twickenham after having finished fourth in the regular season table.

As usual, round 1 included the London Double Header at Twickenham, the eleventh instance since its inception in 2004.

Gloucester won the series for the second year in the row, beating Newport Gwent Dragons 12–5 in the final to become the first team to retain the title.

Man of the Match: Owen Farrell (Saracens) Note: Flags indicate national union as has been defined under WR eligibility rules.