In a preview article for the four-game series between the Yankees and Red Sox that begins tonight at Fenway Park, Mike Vaccaro of the New York Post writes that the long-time rivals have been
playing ping-pong with the sport's best record for most of the year until lately, with the Sox edging out a little farther ahead.
One online definition of "ping-pong" as a verb is "to move back and forth or transfer rapidly from one locale, job, etc., to another; switch".
Has baseball's best record has been moving back and forth between the Red Sox and Yankees for most of the season?