Scott Mayes, a Lexington, Ky. 6-year-old, went undefeated in six races in his first year of competitive swimming as he finished the season with a record-breaking 16-second win in the 25-yard boys' freestyle for 6-year-olds and under at an invitational meet in his home town.

Lindsey Hammonds, 25, of Palmer Park, Md., who has been bowling for nine years, tied the world duckpin 30-game record when he rolled three strikes in the final box of the last game to score a 4,167 total in an elimination tournament in Washington.

Marcia Smoke, an Oklahoma City girl who won a bronze medal in kayaking at the 1964 Olympics, took the 500-meter title at the North American Canoe Championships in Culver, Ind., then teamed with her sister to win the 500-meter two-woman race.

Dan Daniel, 36, a U.S. deputy clerk in Kansas City, Mo., who has been drag racing for 10 years, had car trouble at the American Hot Rod Assn. meet in Smithfield, Texas but took home a trophy anyhow—the title for the best-looking car and crew.

Art Wald, 47, president of a Los Angeles food products company, sailed his Sirius to three straight firsts in the Bahia Corinthian Yacht Club's annual race for 10-meter sloops and became the first skipper ever to win the cup two consecutive years.

Jim Stametz, a senior at Liberty High in Bethlehem, Pa., who has won 70 trophies in 2½ years of archery, added the Pennsylvania Archery Association's freestyle title to the Middle Atlantic and National Field Archery Assn. awards he took earlier this year.

SIX PHOTOS