Todd Petersen, of Wisner, Neb., won the state singles table-tennis title at Omaha to become the youngest (13) state champion in history. At the U.S. Open in Houston, Todd, teaming with Mark Welder, 13, of Jacksonville, took the 13-and-under doubles crown.
Nancy Patterson, a senior at George Washington High School in Philadelphia, won the women's national Moth Class sailing championship in Ludlam Bay off Sea Isle City, N.J. In a field of 30 boats, eight skippered by women, she finished 11th overall.
Ed Blankmeyer, a senior at Seton Hall, was named MVP of the Atlantic Collegiate Baseball League. A second baseman, he batted .401, had a .613 slugging percentage and set a record for total hits at 57. Blankmeyer hit .334 in his three-year collegiate career.
Michael Baker, 14, of Inkster, Mich., won the tumbling competition at the International Special Olympic Games for the mentally retarded at Mount Pleasant, Mich. At his state qualifying meet last June, Mike was named the Most Inspirational Athlete.
David Lee, 9, Of Carmichael, Calif., won three national championships this year. Wrestling in the 65-pound class, David took both the Greco-Roman and freestyle titles. His third is as lightweight champion of the U.S. Judo Association's 9-year-old division.
Nancy Hall, 17, of Sacramento, became the first American Junior Bowling Congress girl to roll a perfect game in sanctioned play. She scored the 300 at her home lanes (Mardi Gras), where she has bowled for 12 years. Her 1974-75 season average is 168.