If Men’s XV’s Rugby concerns many countries (185 in my rankings), it isn’t the case for Women’s XV’s Rugby (69 countries only in my rankings) which is often abandoned for the benefit of Sevens Rugby.
That’s why you will find here a Countries’ World Ranking for Women’s Sevens Rugby which has existed since July 2012 and now contains 144 countries, while there isn’t any official World Rugby’s rankings (former IRB) : http://les-archives-de-serge.over-blog.com/pages/RUGBY_A_VII_FEMININ-8131036.html
Like for XV’s, for every international match, I attribute since 1997 points to every country as a sum of several elements.
I mainly take into account the match level (generally the points average of the 2 teams before the competition day, with minima) and the kind of result (400 for a win, 200 for a draw, 100 for a defeat or 0 for a forfeit in an official competition).
But I also count the match venue (0 or 25 at home according to the opponent from the continent or not, 25 in an other country of its own continent, 50 on neutral ground, 75 in a country of the continent of its opponent, 100 or 75 away according to the opponent), the number of scored points and the difference between the number of scored points and the number of scored points by the opponent.
Finally, I add a bonus for the World Cup and the Olympic Games (50 in qualifying, 100 in final phase, 150 in play offs and 200 in the final).
I establish then an average of the points obtained as indicated previously in every match of the day.
The points number after the day is equal to the sum of 20%, 25% or 33% of this day average and, respectively, 80%, 75% and 67% of the points number before the day.
The choice of the percentage depends on the kind of competition : 20% for a whole local tournament, 20% in pools of an international tournament (25% in final phases), 25% for the whole qualifications in RWC or Olympics, 25% in pools for an World Rugby Series tournament (33% in final phases) and 25% for every pool match of RWC and Olympics (33% in final phases).
This complex method allows to take less into account surprises and requires regularity in performance to progress. Besides, it favors countries the level of which improves by often playing to the detriment of those who play few, the number moreover decreasing in 2% each year. But it also allows to value teams which take part in the most important competitions.
If there are several known international Men’s XV’s rankings (World Rugby’s official rankings, mine, RugInt, rugbyredefined and WRR), if there is at least 2 for the Women’s XV’s (World Rugby’s official and mine) and if there isn’t anyone for Men’s Sevens (excepted mine since august 2016 but uncompleted, Roon Ba have announced one since October 2012), this ranking was the first one for Women’s Sevens Rugby, before Roon Ba’s, realized on September 2012’s end with a similar method for the 50 various sports it treated but which is no more on line since November 2012.
To present this Women’s Sevens ranking on July 23rd 2012, I worked about 2 years to compile the data, mainly from en.wikipedia (special thanks to John Birch from ScrumQueens), to estimate with adjustments the unavailable results and especially to realize multiple tests which allowed me to validate the method.
Thanks too to Quentin, to Helen, to "Ilgorgo" and to all the others members of the closed in April 2015 forum of the former FIRA-AER (Rugby Europe), for all the additional written news, and please keep sharing them somewhere else !
Serge Piquet - July 2012 / September 2017