John Grzeszczak, a junior at Grimsley High in Greensboro, N.C., took eight firsts and two seconds in a qualifying meet for the YMCA Nationals. He won the 100- and 200-meter breaststroke and backstroke, 500 freestyle, 200 and 400 medleys and 100 butterfly.
Kevin Nagurski, captain and leading scorer of the International Falls ( Minn.) High ice hockey team, has put in 16 goals and had 17 assists in 16 games so far this season. Nagurski, son of football Hall-of-Famer Bronko, was on the state tournament team two years ago.
Claire Morris, a junior forward on the Immaculate Conception CYO girls' basketball team ( Grand Prairie, Texas), averaged 25.8 points, 10 rebounds and eight assists in 30 games this season. Her single-game high was 44 points against Bishop Lynch High.
David C. Dickson III, a seventh-grader at Central Columbia Middle School, near Bloomsburg, Pa., won three events in the Quaker City Open Table Tennis tournament: the under-13, novice, and handicap singles titles. He has a USTTA rating of 1,537.
Dave O'Loughlin, 33, a Pittsburgh housing coordinator, won the 50th Anniversary Western Squash Racquets singles championship for the fifth time since 1966 by defeating Jeff Sawyer 15-12, 15-4, 15-13. Eighty-six players competed in the tournament.
Joni Huntley, a freshman at Oregon State, set an American women's high-jump record of 6'2�" at the New Zealand Games in Christchurch, breaking her own mark by 2". A Fosbury flopper, her best previous jump outdoors was 6'?", her best indoors, 6'1�".