Major League Soccer
US Soccer

Referee Timeline

1996 - The first Major League Soccer season.

2012, March - U.S. Soccer and MLS created PRO.

2012, March - Peter Walton was appointed PRO General Manager.

2012, October - was launched.

2013 - The 100th referee since the inception of Major League Soccer in 1996 officiated an MLS fixture.

2013, March - First full MLS season with PRO involvement kicked-off.

associated partners
Major League Soccer US Soccer Canadian Soccer Association North American Soccer League United Soccer Leagues National Women's Soccer League TAG Heuer Polar