Se Ri Pak is retiring after the season, ending a Hall of Fame career that inspired a wave of South Korean players who followed her to the L.P.G.A. Tour. Pak, 38, broke the news after opening with a three-under-par 69 in the J.T.B.C. Founders Cup in Phoenix, where Mi Hyang Lee shot a tournament-record 10-under 62 to take a one-stroke lead.