No tournament in golf appeals to the dreamer more than the U.S. Open, where a qualifying process puts journeymen, club pros and even schoolteachers just three rounds away from a spot in the field next to the game’s elite. On the eve of the U.S. Open at The Country Club outside Boston, Dan Rapaport examines the U.S. Open qualifying process, explains why it remains one of golf’s most intriguing opportunities, and dives into some of the incredible tales that arise out of it every year.