Natalya Lisovskaya of the Soviet Union broke her women's world record in the shot put with a throw of 74 feet 1 3/4 inches on the first attempt, the Tass news agency reported. The record toss came during an international meet in Moscow, part of the Grand Prix circuit of the International Amateur Athletics Federation. Lisovskaya set the previous mark of 73-11 in 1984 . . .

In Eugene, Ore., Saturday night, three-time national champion Doug Padilla sprinted past Steve Scott at the finish to win the 5,000 meters at the Prefontaine Classic meet.

Scott, who has been ranked first in the United States nine times at 1,500 meters, was running his first 5,000 since 1979. Padilla topped the 23-man field in 13:30.20, 19 hundredths of a second ahead of Scott.

Brazil's Joaquim Cruz, the Olympic 800-meter champion who lives in Eugene, won the same event in 3:56.36.

Two meet and field records were broken when Duncan Atwood won the javelin at 260-11 and Linda Sheskey captured the women's mile in 4:29.09 . . .

In Baton Rouge, La., Navy senior Ron Harris achieved all-America status for the third time with a third-place finish in the 5,000 meters Saturday night at the NCAA championships at Louisiana State.

Harris, from Rialto, Calif., finished in 13:45.75, behind two Boston University runners, Dean Crowe (13:43.40) and Are Nakkim (13:44.47). Harris' time broke his school record set in the trials on Thursday, in which he finished fifth in 13:49.2. Harris attained all-America status in the 1987 NCAA indoor championships in the 3,000 meters and in cross country in 1985 . . .

At the Eastern Regional masters championships in New York, Alfonso Walton of Washington, D.C., won the 100 meters in 11.3 seconds, 200 meters in 22.7 and long jump with a leap of 21 feet 2 inches in the 35-39 age group. Ralph Penn of Silver Spring won the 400 meters in 49.6. In the 54 age group, Larry Colbert of Glen Arden won the 100 in 12.1, 400 in 54.0 and placed second in the 200 in 24.8.