Glenn Cowan, 12, of New Rochelle, N.Y., who has played table tennis only two years and has not yet lost a tournament for boys 13 and under (he has 15 victories) won the singles for his age group in the Eastern regional junior championships in Worcester, Mass.
John Krajcir, 33, of Glassboro, N.J., a chemical engineer who took up fencing in college (he captained the Columbia team that gained the NCAA championships in 1952), won the George Piller Memorial international sabre tournament in New York City.
Harold Booker, the 6-foot-9 senior center for Darby-Colwyn (Pa.) High, scored 35 points (on 15 field goals and five free throws), grabbed 30 rebounds and had five assists in leading his team to its 54th straight win, 75-58 over Swarthmore (Pa.) High.
Thomaskoch, 18, the junior tennis champion of Brazil who impressed all with his play at Forest Hills last summer (he lost a quarter-final match to Chuck McKinley in five sets), won the Orange Bowl junior championships in Miami Beach 6-3, 6-0, 6-2 over Bill Harris.
Gary Sherman, 19, of the University of Omaha, bowled his first 300 game in a tournament to raise money for a John F. Kennedy scholarship fund. "I started getting nervous about the ninth frame because everybody had stopped bowling to watch me," he said.
Ron Peters, 19, a bank teller who lives in Flushing, N.Y., put on his racing skates and won the half mile, the 3/4 mile and the mile events at the Riverdale Skating Club, The Bronx, N.Y., to become the Middle Atlantic senior men's indoor speed skating champion.