Last week was a short week (3 games) so I've included the results in Week 5.
Minnesota had down and up results, with a 2-5 loss at New England and 4-2 win to Real Salt Lake - their first ever win. The two results nearly canceled each other out, which means they didn't end up moving much this time around. Columbus ended up being the biggest positive mover, after beating both Portland and Orlando at home. The biggest negative mover was the Red Bulls, who drew Real Salt Lake at home then lost to Houston on the road. Portland and Orlando losing means no team is still perfect, though Kansas City, Dallas, and Toronto remain undefeated. Through only five games, Minnesota has let up a mind-blowing 20 goals (on pace for 136 through the season).
Dallas and Toronto are still the top teams in the league, while Seattle has slipped a bit and is closing in on getting swallowed by the rest of the pack. Here are the full ratings: