To hear Bentley tell the story, he earned a single point for a punch or kick to the body (see if you can spot it), then, "Brett almost punched me in the face to I tried to punch him back and I lost my 1 point for accidentally punching him in the face; so I had no points." So +1 then -1 means Bentley ended the sparring with 0 points.
He was worried about getting in trouble for hitting in the face, but everyone who know Bentley knows he cares a lot about his friends.
Bentley spars Brett (both kindergartners). March, 2011 at GSIS.