Evelyn Ashford set a women's indoor best in the 50-yard dash with a time of 5.77 seconds in Los Angeles. She broke the previous world best of 5.80 seconds set in 1978 by Andrea Lynch and equaled last year by Jeanette Bolden. Ashford also won the 60-yard dash in 6.70. Alice Brown finished second in both races and tied the old 50-yard mark.

In the women's two-mile, Mary Decker Tabb set a world's indoor best with a time of 9:31.7.

Tabb, who holds seven indoor world records, broke the previous time of 9:37.03 set by American Joan Hansen last year.

Houston McTear won the men's 50-yard dash in 5.28 seconds, the third-best time ever.

And Billy Olson broke his own world indoor pole vault mark with a leap of 18 feet, 10- 3/4 inches. He broke his previous world's best of 18-10 1/4 set last week in Ottawa.

Millrose Games director Howard Schmertz said in New York he would probably be forced to bar Renaldo Nehemiah from competing at his meet Friday because of a recent rules crackdown by the International Amateur Athletic Federation.

Schmertz said that The Athletics Congress, the U.S. governing body for track and field, had received a cable from IAAF President Primo Nebiolo requesting confirmation that certain rules would be applied.

Nehemiah, whose football contract with the San Francisco 49ers has been complicating his track career, was cleared for domestic competition on Wednesday by the International Olympic Committee