Two Waratahs Premierships occurred on the 1st of April.
In 1990, Waratahs won its final 1st grade Premiership, when rain washed out their game against Ex Services. The dominant side all season, it was a fitting result.
In 2001, 3rd grade were minor and major premiers when Michael Truswell made his third century for the season in the Final victory against Easts.
https://www.cricconnect.com/profile/1223/armidale-waratahs-the-tahs/blog/2081/finals-on-this-day-1st-april