Susan Wasch, of Middletown, Conn., a mother of four who has been out of competition seven years, teamed with her brother, John Beck, to win the National Platform Tennis Mixed Doubles championship with an 8-6, 6-4 victory in the finals in Greenwich.

Eric Wood, a senior at Nashville's Father Ryan High, won the state 188-pound high school title after a 23-2 season record and was named the Nashville Interscholastic League Wrestler of the Year. As a junior, he won the 158-pound state title.

John (Snooks) Kelley, coach of the Boston College hockey team for the past 36 years, became the first to record 500 victories when the Eagles upset defending NCAA champion Boston University 7-5. Kelley retired at the end of this season.

Howard Mahnke, 49, of Sheboygan, Wis., rolled a 1,709 eight-game series in the $565,000 Louis P. Petersen Bowling Classic in Chicago, only the third above-1,700 series in the past 20 years of the tournament. Mahnke's single-game career high is a 298.

Garry Koch, a senior at Fleetwood Area (Pa.) High, totaled 43 goals in leading his team to consecutive undefeated championship seasons in the Berks County Soccer League. Also a baseball catcher, he batted .357, .486 and .435 the past three years.

Bob Dobek, a sophomore at Henry Ford Community College and a center on the Detroit Junior Wings, broke the Southern Ontario Hockey Association scoring record by 28 points with a 135 total. He scored 65 goals and had 70 assists in 56 games.