Wellingborough won their place in Midlands One with a superb 36-25 play-off win over Coalville.
The game saw the sides who finished second in their respective Midlands Two East divisions go head to head for the final promotion spot.
And it was the men fomr Cut Throat Lane who returned from Leicestershire with elevation secured.
Coalville had home advantage due to their superior record in the regular season.
But that mattered little to Wellingborough who took the game to their hosts from the start.
They led 21-8 at half-time and it proved too big a margin for Coalville to pull back despite a strong display after the break.
Wellingborough can now prepare for a return to Midlands One for the 2015-16 season.
For full reaction to the play-off success make sure you get this week’s Northamptonshire Telegraph