The RCSA v RCSU match was the most prominent date in the Club's calendar. The match was an annual affair which took place at Imperial College on the last Saturday of each November. The competition represented the darts match between the old and current students of the Royal College of Science at Imperial College.
Being such a special match in the calendar, the format of the match was an extended version of a normal match. Sadly, the competition only lasted four years before Imperial College abolished the Royal College of Science, and thus its Union.