- a Ken Griffey Jr. Chocolate Bar was introduced in 1889

- His career-batting average is .302

- set franchise records with 49 home runs and 140 RBI

- his four career 100-RBI seasons and three 40+ HR seasons are most in Seattle history

- May 24 was also first career three-HR game

- first Mariner with 100 steals and 100 homers