Boxing Match Preview: Regis Prograis (29-3-0, 24 KOs) vs. Joseph Diaz (34-7-1, 15 KOs)

Date: Saturday, August 2, 2025
Venue: Credit Union 1 Arena, Chicago, Illinois
Broadcast: DAZN
Division: Super Lightweight (140 lbs)
Scheduled Rounds: 12
Title at Stake: None – High-stakes crossroads bout
Undercard Highlight: Oscar Duarte vs Kenneth Sims Jr

Tale of the Tape

Fighter	Record	KOs	Age	Height	Reach	Stance
Regis Prograis	29–3–0	24	36	5′8″	66.9″	Southpaw
Joseph Diaz	34–7–1	15	32	5′6″	64.2″	Southpaw

Fighter Form & Recent Momentum

Regis “Rougarou” Prograis

Former WBA & WBC super lightweight champion

Coming off back-to-back losses:

UD loss to Devin Haney (Dec 2023)

UD loss to Jack Catterall (Oct 2024)

Prior wins include:

SD vs Danielito Zorrilla

TKO vs Jose Zepeda

TKO vs Tyrone McKenna

Prograis is known for his explosive power (83% KO rate) and aggressive pressure fighting. However, recent losses exposed defensive lapses and footwork issues.

Joseph “JoJo” Diaz

Former IBF super featherweight champion

Lost 6 of his last 7 fights, including:

SD loss to Abraham Montoya (Nov 2024)

KO loss to Oscar Duarte (Apr 2024)

SD loss to Jesus Perez Campos

Recent win: UD vs Jerry Perez (June 2025)

Diaz is a skilled technician with a high guard and solid body work, but his recent form suggests a decline in durability and confidence.

Style Matchup: Pressure vs Precision

This is a battle of two southpaws with contrasting strengths:

Prograis: Relentless pressure, stiff jab, and knockout power.

Diaz: High guard, body punching, and counterpunching ability.

Keys to Victory

For Prograis:

Apply early pressure and increase punch volume

Exploit Diaz’s tendency to shell up defensively

Target the guard with persistent combinations

For Diaz:

Attack the body to slow Prograis’ forward momentum

Capitalize on Prograis’ low guard with well-timed left hands

Show urgency from Round 1 to avoid being overwhelmed

What’s at Stake?

No title on the line, but this is a career-defining crossroads bout.

A win for Prograis keeps him in contention for another title shot.

A win for Diaz revives his career and proves he can still compete at 140 lbs.

A loss for either could signal a slide into gatekeeper status.