The biggest moves of the week were from the Seattle Sounders and New York Red Bulls. Both teams climbed five positions with shutouts at home. Seattle’s 1-0 win over Columbus sent the Crew down four positions, while the Red Bulls’ 4-0 trouncing over FC Dallas on Viernes de Fútbol forced the former number two in the rankings to the sixth slot.
The Portland Timbers jumped four positions to second in the rankings behind the LA Galaxy, who remain at the top, after defeating
Sebastian Giovinco Toronto FC at Providence Park. Will Johnson scored against his former team to even the score before the half, but birthday boy Diego Valeri was having none of that and scored a beauty from a free kick in minute 74 to seal it for the home team.
The Rapids’ draw at home made it four games without a loss for the Colorado side, and the team broke the top 5 in the rankings landing at number 4.
New York City FC got a result at home against the Whitecaps causing a shuffle in the basement of the rankings. NYCFC moved up two positions to number 18, and Houston and Chicago each slid one position to 19 and 20, respectively.
The method: The Elo rating system
Elo ratings are a calculation of performance in head-to-head competitions originally developed for chess. This method has been used to rate a variety of competitions, including soccer. For each team, the calculation considers final scores, margin of victory, home field advantage and strength of schedule.
Sportify builds on existing ELO methodology, improving the season starting rating by using a combination of a proportion of a team’s rating in the previous season and a proportion of the league’s average rating. Wins always add points and losses always deduct points. Unexpected results, such as the upset of a strong team by a lower rated team, cause a greater fluctuation in points compared to “expected” results.