Andrew Jitkoff, 59, is retiring as tennis pro at Houston's River Oaks club to devote more time as a professor of Russian at Rice. In his 25 years at River Oaks, he built its annual April invitational into one of the biggest tournaments on the international circuit.

Nadine Netter, 17, a freshman at Wellesley College and the East's top junior girl tennis player (she lost to Russia's Anna Dmitrieva in the nationals), handily beat six competitors in straight sets to win the Eastern Women's College tournament at Forest Hills, N.Y.

Leonard Jones, 17, a quarterback for the Manual High School team in Kansas City, Mo., threw two touchdown passes to lead his team to a 12-7 victory over Lincoln High but, alas, he also ruined an imposing school record—84 straight interscholastic league defeats.

Elias A. Kalil of Manhasset, N.Y. cannily cruised his 55-foot Irene K V through the American Power Boat Association's East Coast predicted-log series, compiling right-to-the-minute clockings to take the APB A national title for the third year in a row.

Bob Hawke, 15, hefty Butte, Montana high school student who has trained under his track-coach father, set a junior Olympic discus mark (173 feet 2½ inches) and national freshman records in the discus and shotput, winning Montana's AAU outstanding athlete award.

Lanham Riley, a quiet but quick cowboy from Aledo, Texas, rode Rex Del Rancho to victory in the Dallas State Fair quarterhorse roping contest, scoring 76 points. It was Riley's third grand championship astride the same horse in four years of competition.