By age 22, Griffin was living in Midway City, California and defeated Frank Vassar of Spokane, Washington in the 1992 U.S.
He defeated future heavyweight contender Jeremy Williams at the box-offs, to make the 1992 Olympic team.
He won 11 of his next 12 bouts, losing only a controversial split decision to undefeated but unknown southpaw Eric Harding, despite knocking him down and out-landing him according to punchstats.
In the fourth, Griffin was twice staggered, and took 14 unanswered shots to the head and gloves, which forced referee Joe Cortez to stop the bout.
[2] Now in his mid-thirties, a faded Griffin would go on to lose to Rico Hoye by split decision, Julio César González when the bout was stopped in the early goings on a technicality and sent to the scorecards, and Glen Johnson by TKO 11; all three were IBF eliminators.