It wasn’t so long ago a sign hung at Royal St. George’s, host of this week’s Open Championship, banning “women or dogs” from the clubhouse. Only this month did Pine Valley, the No. 1 golf course in the U.S., invite its first women to be members. In this episode, Dan Rapaport looks at all-male golf clubs—the series of events that led some of golf’s most elite clubs to reverse their policies and allow women, and the reasons certain clubs are still holding firm in keeping women out.