MLS Forecaster: Playoff projections

FC Dallas currently has a 26.2 percent chance to win the Supporters' Shield, according to SPI. Kim Klement/USA TODAY Sports

With the All-Star Game on Wednesday, Major League Soccer reached the unofficial midpoint of the 2015 season, though teams have played anywhere from 18 to 23 games on their 34-match slates. Regardless, the beginning of the league's second half provides a perfect opportunity to unveil the inaugural MLS Forecaster, powered by ESPN's Soccer Power Index (SPI).