Marilyn Greenwood, 17, of Bristol, England won the under-21 championship, four doubles titles, and finished runner-up in the women's singles—all within 10 hours at the North of England tennis championships. Her only nourishment was one ham sandwich.
James O'Connell, 22, dodged heavy traffic, baby carriages and curious pedestrians to win his second Milk Run marathon (15� miles from New York's Columbus Circle to The Bronx). He reached the finish line in 1:27:38.2, only three minutes after the official cars arrived.
Jerry Nelson, 29, of the Oklahoma City 89ers, relying mainly on good control of a blazing fast ball, won his 10th straight Pacific Coast League game by pitching a 9-1 no-hitter against the Salt Lake City Bees. Four of Nelson's previous five wins were shutouts.
Benjamin Greene, 40, of Elizabethtown, N.C. climbed to 16,500 feet in an Austrian-designed sailplane, sank to 1,000 feet looking for lifts but, after 8� hours in the air, covered 456 miles to set a pending world record for distance soaring to a predetermined point.
Dan Keefe, 30, of Wellesley, Mass., who was an All-East hockey star and high scorer at Brown University eight years ago and is now golf pro at the Wayland (Mass.) Country Club, won his first tournament by shooting a record 207 in the 54-hole Maine Open.
Randall Swan, 25, a harbor pilot who guides large ships through the tricky tides and currents of Charleston ( S.C.) Harbor, switched to his slippery 18-foot Y-Flyer scow and skimmed to his second international title by winning all five of the series races.