The last scoring blow of the fight made 18-year-old Augustine Sanchez the Olympic Trials 125-pound champion Friday night.
That right-hand punch gave Sanchez, the 1996 U.S. champion, a 12-11 victory over Floyd Mayweather, a 1995 U.S. champion.Sanchez, of Las Vegas, leaped high and waved an arm when the verdict was announced at the Henry J. Kaiser Convention Center, while Mayweather, 19, of Grand Rapids, Mich., stared dejectedly at the canvas.
The victory puts Sanchez into the box-offs April 18-20 at Augusta, Ga., which will determine the 12-boxer Olympic team.
Mayweather now must fight Sunday in a final of the losers' bracket in this double elimination tournament.
David Diaz, 19, of Chicago, the National Golden Gloves champion, also turned the tables on Zabdiel Judah, 18, of Philadelphia with 13-8 decision in the 139-pound final. Judah had outpointed Diaz in the 1995 Police Athletic League final.
Jauquin Gallardo, 17, of San Leandro, Calif., became the first trials champion. He scored effectively with left jabs and right leads for a 23-16 decision over Sean Johnson, 26, of Washington.
In a beautiful exhibition of boxing and power punching, Zahir Raheem, 19, of Philadelphis, won the 119-pound title with a 22-5 verdict over Steve Carter, 21, of the Navy at Norfolk, Va.
At 165 pounds, Rhoshii Wells, 19, of Riverdale, Calif., knocked down 32-year-old Ronald Simms of Langley AFB in Virginia, and scored a 6-2 victory.
Nate Jones, 23, of Chicago outpunched heavy-hitting Davarryl Williamson, 27, of Phoenix, and won the 201-pound title 12-4.
The other six title bouts will be held Saturday afternoon.