Bournemouth effectively sealed promotion to the Premier League for the first time in their 116-year history after a 3-0 win over Bolton Wanderers, sparking joyous scenes for a club who almost went out of existence in 2009.
The Cherries have a superior goal difference that makes it virtually impossible for the south-coast club to be overtaken by Middlesbrough for the second automatic promotion place, even if they lose their final match.
Watford were promoted from the Championship on Saturday.
Promotion to the Premier League is expected to bring a potential cash boost of more than £120million to a club who six years ago were mired in financial turmoil and just avoided relegation from the Football League.
That figure and the success of this season may forever change a club with a home ground that can hold just over 12,000.
At the age of 37, manager Eddie Howe secured the greatest win in the Cherries' history in style, and further enhanced his own burgeoning reputation.
Two fine goals in the last five minutes of the first half, first from Marc Pugh and then Matt Ritchie, sparked the celebrations.
The victory was sealed with 12 minutes remaining when the club's top scorer, Callum Wilson, got the third.
That goal came shortly after Bolton had been reduced to ten men, Dorian Dervite seeing red for a professional foul in the box.
Yann Kermorgant sent the resulting penalty high over the bar, not that it mattered, with the home fans roaring 'We are going up!' long before the final whistle.