This page determines the possible IRD world ranking point changes in a game, given the initial points of both teams.
More information on the point system can be found at http://www.irb.com/rankings/index.html.
Currently, it is quite possible (likely) that this script doesn't work for every point exchange, but I'm not sure. If you notice anything odd, feel free to email me at rugby_script_errors at this domain.
Home TeamHome Team pointsAway TeamAway Team pointsA comment, to keep track of stuff
Change to get method
Home Team (ranking)Away Team (ranking)Home WinDrawAway WinComments
15+1-151-1515+