All test matches played by a team in the last four years, including matches in the Netball World Cup and Commonwealth Games, are considered in the calculation. The ranking of teams is determined by comparing teams' ratings, which is the average points earned per match in the last four years.^[4]

Points per match

Teams earn points for each match, with the specific amount determined based on the outcome of the match (win or loss) and the rating of their opponents.^[4]

• In matches between teams within 40 rating points of each other, winning a game earns a team 50 more points than their opponent's current rating, while losing a match earns a team 50 points less than their opponent's current rating.
• In matches between teams more than 40 rating points apart, an exception is applied where the rating of a team's opponent is treated as if it is exactly 40 points apart for the purpose of the calculation. That is, higher-rated team would have their opponent possess a rating of 40 points less than them, while the lower-rated team would have their opponent possess a rating of 40 above them.

A team's rating always increases following a victory and decreases after a loss. However, winning against a higher-ranked team increases a team's rating more and losing against a lower-ranked team decreases a team's rating more.

Weighting

In the calculation of a team's rating, the points earned for each game are weighted based on the time the match was played.^[4]

• Matches played in the two most recent years before the time of calculation are weighted at 100%.
• Matches played three to four years before the time of calculation are weighted at 50%.