Antonio Margarito vs. Antonio Diaz
2002-03-16 : Antonio Margarito 147 lbs beat Antonio Diaz 146½ lbs by TKO at 2:17 in round 10 of 12
- Location: Bally's Las Vegas, Las Vegas, Nevada, USA
- Referee: Jay Nady
- Judge: Dave Moretti 86-85
- Judge: Jerry Roth 87-84
- Judge: Clark Sammartino 87-84
- World Boxing Organization Welterweight Title (Vacant title)
- Time: 2:17
- Weights: Margarito 147 lbs, Diaz 146.5 lbs
- In a toe to toe battle of attrition, after six rounds, Margarito took over.
- Diaz down in Round 10. He also suffered a mouth bleed in 6, and a puff under the left eye in 8.
- Diaz's corner throws in the towel.