The first XV was promoted in 2022–23 and currently play in Regional 1 South East, a fifth tier league in the English rugby union system.

The fixture will be replayed during the club's centenary season, on Boxing Day 2022, this time at the home ground at Billing Road.

[5][6][7] Old Northamptonians have won the Northampton & District Alliance Cup 22 times, including a run of 14 consecutive titles from 2004 to 2017.

The club regained the title in 2022,[10] and also won the Lewis Shield and Oceanic Trophy competitions, the first time this "treble" has been achieved.

[11] In the centenary season 2022–23, in addition to winning the league, ONs retained the Oceanic Trophy and the Lewis Shield.