Although out-of-scope for this site, Tens is another form of the abbreviated rugby union game which is also very popular in Scotland.
Tens is a popular rugby union game in south-east Asia coming to prominence there in the 1960s, but has been played in Australia, New Zealand and Scotland much earlier.
Australia
A ten-a-side match was reported in The Northern Mining Register newspaper on 8 August 1891. This match took place in Charter Towers, Queensland. It was a training match on the Athletic Reserve and two ten-a-side teams were picked.
The newspaper reported:
With only ten men a side and a heavy ground to play on, the game was of course not a fair reflection of rugby union football but the practice no doubt served to help keep the men in condition for the return match at Townsville on the 15th. It is to be hoped that full teams will muster on Thursday next, as without constant practice they may find Townsville turn the tables.
New Zealand
It has been played in New Zealand since the 1920s:
Scotland
Stirling High School – 17 June 1941
https://www.britishnewspaperarchive.co.uk/viewer/BL/0000474/19410619/085/0005
Hawick Trades trials – 1 September 1951
https://www.britishnewspaperarchive.co.uk/viewer/BL/0002784/19510905/116/0008
Various clubs run Tens tournaments in Scotland:
Clydebank RFC
Montrose and District RFC
Blairgowrie RFC
Scottish Sevens tournaments 