Juan Diaz vs. Billy Irwin
2005-01-21 : Juan Diaz 134½ lbs beat Billy Irwin 133½ lbs by TKO at 1:27 in round 9 of 12
- Location: Reliant Center, Houston, Texas, USA
- Referee: Earl Morton
- Judge: Ray Hawkins 80-70
- Judge: Levi Martinez 80-71
- Judge: Gale E. Van Hoy 78-71
- World Boxing Association Lightweight Title (2nd defending of Díaz)
- Time: 1:27
- Weights: Díaz 134.5 lbs, Irwin 133.5 lbs
- Diaz makes his 2nd title defense with a dominating performance over the courageous Canadian challenger.
- Irwin was down for a three-count in the 2nd round.
- A right puff and lacerations on scar tissue below the eye led to the stoppage.