Ken Griffey Jr. Signed Official MLB Baseball w/ "HR 630" - BAS Witnessed

Add the autograph and the inscribed career home run total of one of the greatest power hitters in MLB history — captured on the official MLB baseball at the highest witnessed authentication tier available — to your collection with this Ken Griffey Jr. Autographed Official MLB Baseball with "HR 630" Inscription — Beckett (BAS) Witnessed. Griffey signed this official Rawlings MLB baseball with his career home run total inscribed — 630 home runs across 22 Major League Baseball seasons, currently the 7th-most in MLB history. The "HR 630" inscription anchors the listing to Griffey's signature career credential at the singular career power-hitting tier — among an exclusive club of just nine players in MLB history to ever reach 600 career home runs, alongside Barry Bonds (762), Hank Aaron (755), Babe Ruth (714), Albert Pujols (703), Alex Rodriguez (696), Willie Mays (660), Griffey (630), Jim Thome (612), and Sammy Sosa (609). Authenticated by Beckett Authentication Services with their premium Witnessed tier — meaning a Beckett representative physically observed both the signature and the inscription being applied to the baseball.

This Official MLB Baseball has been hand-signed and inscribed "HR 630" by Ken Griffey Jr. The autograph and inscription have been certified authentic by Beckett Authentication Services (BAS) Witnessed — a Beckett representative was physically present and observed the signing.

Product Highlights

• Hand-signed and inscribed "HR 630" by Ken Griffey Jr. — Pro Football, wait, Baseball Hall of Fame Class of 2016 (first-ballot inductee at 99.32% — third-highest vote percentage in HOF history); 13-time MLB All-Star; 10-time Gold Glove Award winner; 1997 American League MVP; 1997 AL Home Run Leader (56 HRs); first overall pick of the 1987 MLB Draft
• Official MLB Baseball — official Rawlings Major League Baseball with commissioner's stamp; the same specification used in MLB regular-season and playoff games
• "HR 630" Inscription: career home run total inscribed alongside the signature, capturing Griffey's career home run credential in his own hand
• Beckett (BAS) Witnessed Authentication: a Beckett representative was physically present and observed the signature and inscription being applied; tamper-proof witness hologram on the piece; verifiable at Beckett's official website. Witnessed is BAS's premium authentication tier.
• Career home run credentials: 630 career home runs across 22 MLB seasons (1989-2010); 5th all-time at retirement; currently 7th all-time in MLB history; member of the elite 600+ home run club
• Other career credentials: 2,781 career hits, 1,836 career RBIs, 1,662 runs scored, .284 lifetime batting average, 13 All-Star selections, 10 Gold Gloves, seven Silver Slugger Awards, 1997 AL MVP
• Backed by our Lifetime Authenticity Guarantee

"HR 630" — A Singular Career Credential

The career home run total is one of the most prestigious statistical credentials in baseball. The 600-career-home-run threshold is among the most exclusive in MLB history — across the league's 150+ years of competition, only nine players have ever reached 600 career home runs. Ken Griffey Jr. finished his 22-season MLB career with exactly 630 home runs, placing him in that exclusive group alongside Barry Bonds (762), Hank Aaron (755), Babe Ruth (714), Albert Pujols (703), Alex Rodriguez (696), Willie Mays (660), Jim Thome (612), and Sammy Sosa (609). At his retirement on June 2, 2010, Griffey ranked 5th all-time on the MLB career home run list — behind only Bonds, Aaron, Ruth, and Mays. Since his retirement, Pujols (who reached 700 in 2022 and finished at 703) and Rodriguez (696, retired 2016) have surpassed him on the all-time list, moving Griffey to his current 7th-place position. The "HR 630" inscription on this baseball anchors the piece to Griffey's signature career power-hitting credential — written in his own hand as a permanent record of one of the most prolific home-run-hitting careers in baseball history. Griffey is widely regarded as the most prolific left-handed power hitter of his generation, and his 630 home runs rank 3rd all-time among left-handed hitters (behind only Bonds and Ruth).

The Iconic Home Runs Within the 630

Not all of Griffey's 630 home runs were created equal — several stand among the most memorable in modern baseball history. His first major league home run came on April 10, 1989 at the Seattle Kingdome off Chicago White Sox pitcher Eric King — a 19-year-old phenom announcing his arrival in his first home at-bat. On September 14, 1990, he and his father Ken Griffey Sr. hit back-to-back home runs against the California Angels — the only father-son back-to-back home runs in MLB history, a feat that has never been repeated. His 500th career home run came on Father's Day in 2004 with his father in the stands — a structurally meaningful moment that captured the father-son element of his career. His 600th career home run came in 2008, joining what was then just six players in MLB history to reach the milestone. In 1997, he led MLB with 56 home runs en route to his unanimous AL MVP award — the first of two consecutive 50+ home run seasons (he hit 56 again in 1998). His 1993 season included an eight-game home run streak that tied Dale Long's 1956 and Don Mattingly's 1987 all-time MLB record. Beyond his on-field home runs, Griffey hit one of the most iconic home runs in Home Run Derby history at the 1993 All-Star Game in Baltimore — becoming the first and only player to hit the B&O Warehouse on the fly. Though that derby home run didn't count toward his career total, it cemented his power-hitting reputation in the baseball cultural consciousness.

The Mariners Franchise Icon

Ken Griffey Jr. spent the majority of his MLB career with the Seattle Mariners — the franchise that drafted him with the first overall pick of the 1987 MLB Draft. His Mariners career spanned 11 seasons in his first stint (1989-1999), one year with the Chicago White Sox briefly in 2008, nine seasons with the Cincinnati Reds (2000-2008), and a final two-season return to Seattle (2009-2010). Across both Mariners tenures, Griffey hit 417 career home runs — the most in Mariners franchise history. He became the centerpiece of the Mariners' modern identity, the player whose presence Mariners team president Chuck Armstrong specifically credited with helping fund Safeco Field (now T-Mobile Park) and "ensuring the team remained in Seattle." The Mariners retired his #24 jersey on August 6, 2016, two weeks after his Pro Baseball Hall of Fame induction ceremony in Cooperstown. He has remained connected to the franchise post-playing career — he joined the Mariners' ownership group in 2021. The "HR 630" inscription on this baseball captures his complete career home run total, but a meaningful portion of that 630 — 417 home runs specifically — came in Mariners uniforms across his two stints in Seattle.

The Hall of Fame Record-Setting Induction

On January 6, 2016, Ken Griffey Jr. was elected to the Baseball Hall of Fame in his first year of eligibility. He received 437 of 440 votes cast (99.32%) — at the time, the highest vote percentage in the history of the Hall of Fame's Baseball Writers' Association voting, breaking Tom Seaver's 1992 record of 98.84%. Griffey's 99.32% has since been surpassed by Mariano Rivera (100%, unanimous, 2019) and Derek Jeter (99.7%, 2020), making him currently the third-highest vote percentage in Hall of Fame BBWAA history. The 2016 vote also made Griffey the first #1 overall draft pick to ever be inducted into the Hall of Fame — a distinction reflecting the rarity of #1 overall picks fulfilling their potential at the elite Hall of Fame level. The HOF induction ceremony took place in Cooperstown, NY in July 2016, with Griffey delivering an emotional speech that recognized his father (Ken Griffey Sr., a three-time All-Star), his Mariners scouts, and the Seattle franchise that drafted him.

The Official MLB Baseball Canvas — Tool of the Trade

The official Major League Baseball is one of the most authentic canvases available for any baseball player's autograph. The Rawlings Official Major League Baseball — featuring the commissioner's stamp and the official MLB specification — is the same baseball used in MLB regular-season, playoff, and championship games. Pairing a baseball player's autograph with the official league game ball produces the most direct possible connection between the autograph and the player's professional activity. The official MLB baseball provides a smooth, white leather canvas that displays signatures and inscriptions clearly — particularly important for inscribed pieces where readability is structurally critical. The "HR 630" inscription is clearly visible alongside Griffey's signature on the baseball's surface, with the inscription's permanence and clarity protected by the BAS Witnessed authentication chain.

The Beckett Witnessed Authentication Tier

Beckett Authentication Services (BAS) operates with multiple authentication tiers depending on the level of physical verification involved. The Witnessed tier — applied to this piece — is BAS's premium authentication category: a Beckett representative was physically present during the signing session and observed both the signature AND the "HR 630" inscription being applied directly to the baseball. This eliminates virtually all post-signing forgery risk and produces one of the strongest authentication chains available for signed inscribed baseball memorabilia. The tamper-proof witness hologram applied to the piece is verifiable online at Beckett's official website, and the BAS-issued hologram number connects the piece to Beckett's permanent authentication database. For collectors of premium inscribed Hall of Fame pieces, the Witnessed authentication tier provides the verification confidence that the piece's premium pricing requires.

Specifications

Authenticity Guarantee

Every signed piece at GameDay Sports Memorabilia is backed by our Lifetime Authenticity Guarantee. If your item is ever determined to be inauthentic, we will replace or refund it — no questions asked.