[2][3] The main circuit has now grown to 11 tournaments; 10 in Scotland and 1 - the Berwick Sevens - in England.
Controversially, due to the influence of former national coach Jim Telfer, Melrose RFC did not have to change its date.
The likes of the French Barbarians (1983); Ireland Wolfhounds (1991); Bay of Plenty (1992); Manly (1995); Hamilton RFC, Sea Point (2010) and Saracens (2012, 2013) have all won the event.
Germany 7s reached the final of the Melrose Sevens in 2015, losing out to Glasgow Warriors.
[16] The league began in 1994 though work is ongoing to calculate previous winners based on the format.
The Kings of the Sevens champions are thus the team that has performed the best across all ten tournaments.