Cup Confederations' Championship and qualifying tournaments Other annual official events organized by Continental Confederations. The rankings outcome of each match depends on two main factors: The playing strength of the teams competing The actual match performance or final result of the match Ranking Procedure It is based on the zero-sum system, like CONCACAF Ranking Index, and after each game points will be added to or subtracted from a team's rating according to the formula: where: – the team's number of World Ranking scores after the game – the team's number of World Ranking scores before the game – the match importance: 10.0 – Other annual official events organized by Continental Confederations 17.5 – Confederations' Championship qualifying 20.0 – FIVB Challenger Cup 35.0 – Olympic Games qualifying, FIVB World Cup and Confederations' Championship 40.0 – FIVB Nations League 45.0 – FIVB World Championship 50.0 – Olympic Games – the result of the game depended on match and sets won (3-0, 3-1, 3-2, 2-3, 1-3 or 0-3) – the expected result of the game has the value between -2 and +2. If the match is completely balanced, the expected result is 0. The bigger the surprise, the more points are transferred. Strength difference between the teams where: – the team A's number of World Ranking scores before the game – the team B's number of World Ranking scores before the game Probability of outcomes Team A win 3–0 Team A win 3–1 Team A win 3–2 Team A lose 2–3 Team A lose 1–3 Team A lose 0–3 where: – the cut-points in the normal distribution that represent the average outcome of a match between two equal strength opponents derived from the actual match results of the past decade Expected match result where: – the actual result or set score variant – A win 3–0 – A win 3–1 – A win 3–2 – A lose 2–3 – A lose 1–3 – A lose 0–3 Examples There are the examples of the new ranking procedure. Before the match at the FIVB Volleyball World Championship (K = 45), Brazil (Team A) is ranked number 1 with a 415 WR score and Japan (Team B) is ranked number 11 with a 192 WR score. Strength difference between Brazil and Japan Expected match result Expected match result for Brazil: Expected match result for Japan: World Ranking scores after Brazil win 3–0 World Ranking scores for