The Courage won four- on Sunday in front of a sellout dwelling crowd of 10,227 in Cary, North Carolina.
Kerr dominated the league this season with a record 18 ambitions and picked up the most beneficial player and golden boot awards.
The defending champion Courage’s game program was to suffocate the Australian striker with defenders.
The Courage had been also lethal in attack, jumping on the Red Stars early with Brazilian midfielder Debinha left open in front of objective just 4 minutes into the game and quickly identified the back of the net.
The Courage followed that up with ambitions by Jessica McDonald in the 26th minute and Crystal Dunn in the 45th minute to take a commanding three- halftime lead.
Kerr uncharacteristically failed to take benefit of objective-scoring possibilities, like in the very first half getting an open shot but drilling it straight at Courage goalkeeper Stephanie Labbe for an simple save.
In the second half Kerr was left open and failed to head in a cross from group-mate Casey Quick.
The Red Stars function a different Australian in goalkeeper Mackenzie Arnold, but she wasn’t chosen in the matchday squad.
Kerr’s future seems to be in the UK or Europe, with the Matildas star anticipated to skip a different season with Perth Glory in the W-League and sign a significant funds deal with Chelsea, Lyon, Bayern Munich or Paris St-Germain.