Carlin Thompson, 16, led the Ada (Okla.) High Cougars to their second consecutive state track title by winning the 440 in 49.3, the 220 in 22.5 and anchoring a 48.2 leg on the winning mile relay team (3:19.2), personally collecting 15 of Ada's 43 points.
Harold Solomon, 17, of Springbrook High in Silver Spring, Md., the country's fifth-ranked junior, won the U.S. Lawn Tennis Interscholastic championship with a 6-2, 3-6, 6-2 victory over Harris Masterson of Mobile, Ala. at the tournament in Bethesda.
Karen Yurkovich, 14, knuckled down to win the Girls National Marbles championships, sweeping 39 out of 40 matches to run up a 97.5 score, the highest in the history of the tournament. Karen follows her sister, Pat, who won the same title in 1967.
Jeff Lewis, of Upper Arlington ( Ohio) High, broke his own state record in the 100-yard backstroke with a 53-second burst at the Ohio schoolboy finals. He also holds state records in the 200-yard individual medley, 100-yard freestyle and 100-yard butterfly.
Lynn Spencer, 12, from Asheboro, N.C., won the state's Class-D championship in the National Horseshoe Pitchers Association tournament at Winston-Salem, tossing 81 ringers out of 203 shoes for a 40% average in competition against 40 grown-ups.
David Roth, 6, shortstop for the Annandale (Va.) Boys Club T-Ball team (a five-inning version of baseball), made an unassisted triple play, first catching a pop-up to short, then racing to second to tag a runner, finally out-sprinting another runner back to first.