Trivia

On September 14, 1990, Ken Griffey Sr. and Ken Griffey Jr., playing for the Seattle Mariners, hit back-to-back home runs, becoming the only father-son duo to hit back-to-back home runs and home runs in the same game.

He and his father are one of two father-son duos to play on the same team in the same game. The other is Tim Raines, and Tim Raines Jr.

Father, Ken Griffey Sr., was a pivotal player for Cincinnati's "Big Red Machine" during the 1970s.

Demands trade from the Seattle Mariners, saying he wants to play somewhere closer to his family. (November 1999).

Professional baseball player

Traded on 10 February 2000 to the Cincinnati Reds for OF Mike Cameron, Brett Tomko, and two minor league players.

#1 overall pick in the June 1987 draft out of Moeller H.S. (Cincinnati, Ohio) by the Seattle Mariners.

Recorded "The Way I Swing" with Kid Sensation.

Son George Kenneth III "Trey" (19 January 1994), daughter Taryn Kennedy (21 October 1995), adopted son Tevin Kendall (5 May 2002). When Trey was born, then-Mariners' G.M. Woody Woodward sent him a player's contract dated 2012.

He and his father are the only father-son duo to hit home runs in the same game.

Seattle Mariners All-Time Homerun Leader (398) and All-Time Leader in Slugging Percentage (.569).

Seattle Mariners All-Time Leader in Slugging Percentage(.569).

Member of 1995 and 1997 American League Western Division Champion Seattle Mariners team.

1992 All Star Game MVP.

1997 American League MVP. Led league in Slugging Percentage (.646), Runs (125), Total Bases (393), Home Runs (56), RBI (147) and Extra-Base Hits (93).

Seattle Mariners All-Time Leader in Grand Slams (12).

Holds Seattle Mariners record for home runs in a month (15 in May 1994).

Holds Seattle Mariners single season record for home runs on road (29 in 1997).

Holds Seattle Mariners single season record for home runs at home field (30 in 1998).

Holds Seattle Mariners single season record for home runs by lefthander (56 in 1997 and 1998).

Seattle Mariners All-Time Home Run Leader by a lefthander (398).

Holds Seattle Mariners single season record for most Extra-Base Hits (93 in 1997).

Holds Seattle Mariners single season record for most RBI (147 in 1997).

Holds Seattle Mariners single season record for most Total Bases (393 in 1997).

Holds Seattle Mariners single season record for Slugging Percentage (.674 in 1994).

Seattle Mariners All-Time Home Run Leader (398).

Made major league debut on 3 April 1989.

Named to Baseball Digest magazine's 1989 Rookie All-Star Team.

Pacific Trading Cards manufactured a milk chocolate candy bar in honor of Jr's rookie debut in 1989, called the Ken Griffey Jr. bar.

Made his professional baseball debut with the Bellingham (Washington) "Baby" Mariners of the Northwest League in 1987.

Shares first and last names with another "Ken Griffey". Dealer of used cars in the Clarksville and Nashville, Tennessee areas, no relation.

Center fielder with the Seattle Mariners (1989-1999; 2009-2010), Cincinnati Reds (2000-2008[start]) and Chicago White Sox (2008[end]).

(July 31) Traded to the Chicago White Sox. (2008)

The Seattle Mariners announced that he will return to the team, and will sign a 1 year contract worth $2 million, plus incentives. (February 2009)

Inducted into the National Baseball Hall of Fame in 2016, with a record 99.32% of the vote. The previous record was Tom Seaver's 98.84% in 1992.

Elected to the National Baseball Hall of Fame in his first year of eligibility with a record 99.3% of the votes. Griffey is the first #1 overall draft pick be elected. [January 6, 2016].

Shares his birthday and birthplace with Stan Musial. His paternal grandfather was a high school teammate of Musial.

His number 24 was the first number retired by the Mariners in 2016, the same year he was inducted into the Baseball Hall of Fame.