They did so by claiming 12 wins from 18 matches while picking up a total of 12 bonus points along the way.
That was enough to keep them ahead of second-placed Bath by virtue of having claimed one more victory than Johann van Graan’s men.
And now Saints will head into the Premiership play-off semi-final against Saracens at a sold-out cinch Stadium at Franklin’s Gardens.
How Phil Dowson’s men would love to add two more wins to their tally this season as they seek to claim some long-awaited major silverware.
But, for now, let’s take a look back on the games they have already prevailed in during this Premiership adventure...
1. Newcastle Falcons 14 Saints 16
Tom James took the plaudits after helping Saints to claim a win at Newcastle on October 29 Photo: Stu Forster
2. Saints 24 Bath 18
Alex Coles scored in a 24-18 win against Bath at the Gardens on November 4 Photo: David Rogers
3. Saints 34 Exeter Chiefs 19
Curtis Langdon scored for Saints against Exeter on November 12 Photo: David Rogers
4. Saints 36 Harlequins 33
Alex Mitchell scored for Saints against Harlequins on November 24 Photo: David Rogers