The National 600 Bowling Club, Inc. is a nonprofit and independent organization comprising USBC members who have bowled a 3-game series of 600 or more in USBC sanctioned league or tournament competition. Each year the Club conducts two tournaments: a mail-o-graphic tournament at the beginning of the calendar year and an annual tournament held concurrently with the USBC Women’s Nationals. To learn more about the National 600 Bowling Club click HERE. Entry forms and rules for the 2009 Mail-O-Graphic are available HERE.