An army of 900 fans saw them record a 2-1 win at Brackley to secure a return to the National League after 14 years away.
And our photographer Richard Parkes captured these cracking pics of just some of the fans who were there.
Take a look at see if you can spot a familiar face.
1. Brackley 1 Boston United 2
Boston United fans saw their side finally clinch promotion back to the National League. Photo: Richard Parkes
2. Brackley 1 Boston United 2
Boston United fans saw their side finally clinch promotion back to the National League. Photo: Richard Parkes
3. Brackley 1 Boston United 2
Boston United fans saw their side finally clinch promotion back to the National League. Photo: Richard Parkes
4. Brackley 1 Boston United 2
Boston United fans saw their side finally clinch promotion back to the National League. Photo: Richard Parkes