Rookie third baseman Cal Ripken Jr. got three hits in Miami yesterday to help his father's team defeat Coach Elrod Hendricks' team, 4-2, in the Baltimore Orioles' first intrasquad game this spring.

First baseman Eddie Murray hit a 450-foot homer in the first inning to give Coach Cal Ripken Sr.'s team a 2-0 lead in the six-inning game.

The younger Ripken singled on his first trip. Then, in the fourth inning, he doubled and scored the go-ahead run on Benny Ayala's single.

Ripken doubled in the sixth when catcher Rick Dempsey's sacrifice fly ended the scoring for Coach Ripken's team.

Dempsey, a right-hander who is experimenting as a switch hitter this spring, hit the fly ball left-handed. Dempsey also singled from the left side against Jim Palmer.

Dan Graham drove in the runs for Hendricks' team with a bases-loaded single in the first inning.

The Orioles think Tim Stoddard will be able to pitch in Friday's intrasquad game. The right-hander had to quit throwing Tuesday because of a stiff shoulder.

"Tim played catch today and seemed okay," Ray Miller, the pitching coach, said yesterday. "I think maybe the shoulder stiffened because he was throwing too many change-ups. I told him to stay away from them for a while and he should be able to pitch Friday."