Diss smashed Imperial Medicals on Saturday to win promotion back up to London Two North after a three-year absence.
The Blues ran in eight tries to win 50-15 in a one-sided London Three North play-off.
Tries: Matt Richards, Andy Horne (2), Chris Beaird, Richard Horne, Tim Groom (2), Adam Williamson.
Conversions: Williamson (5).
Read the full match report and reaction in Friday's Diss Express.
Also moving up are Wymondham. They finished with a 100 per cent record in the Eastern Counties League to earn promotion to London League Four.
London Leagues promotion and relegation details in full. Click
here.
