SPORTSWRITER Mark Kriegel toiled for The Post and then the Daily News before decamping to Los Angeles, where he wrote biographies of Joe Namath and “Pistol” Pete Maravich. Kriegel is now the national columnist for FOXSports.com. And, even better, he’s dating Gigi Levangie Grazer, the ex-wife of movie producer Brian Grazer and author of such chick-lit classics as “The Starter Wife” and “Queen Takes King,” which she launches in New York on June 11 at Mr. Chow in TriBeCa. When her marriage was dissolved last month, Gigi received a lump-sum payment of slightly more than $13 million, plus $40,000 a month in child support, $475,000 for legal fees, and $488,777 for retroactive support. Asked by Page Six if she was dating Kriegel, Gigi replied, “Yes, I am . . . he said you told him good things would happen once he left the Daily News.”