The significant detail about the Mariners vs. California Angels game on Tuesday, April 9, 1991, is that
it was Opening Day for the Seattle Mariners. While Ken Griffey Jr. had already made his debut in 1989, and his famous father-son home run with Ken Griffey Sr. had occurred the previous season in 1990, this game marked the first contest of the 1991 season for the Mariners.
Key facts about the game:
- The Angels defeated the Mariners 3–2 at the Kingdome.
- The attendance for the season opener was 53,671.
- Chuck Finley was the winning pitcher for the Angels, and Erik Hanson took the loss for Seattle.
- Ken Griffey Jr. was in the Mariners' Opening Day lineup, batting third and playing center field.