Boxing

William ZepedaCamaron

Lightweight · Mexican · Golden Boy Promotions

Fighting style

Relentless high-output southpaw who applies constant forward pressure and throws heavy volume, breaking opponents down over championship rounds.

Signature

Suffocating output — regularly averaging over 100 punches a round to wear opponents down before finding the finish.

Record & stats

34Wins1Losses0Draws27Finishes
DivisionLightweight
CategoriesBoxing
PromotionGolden Boy Promotions
NationalityMexican
BornSan Mateo Atenco, Mexico
Height5'9" (175 cm)0′2″
Reach69.5" (177 cm)2′3″
StanceSouthpaw
Age30
KO rate82%
StatusActive

How the wins come

79% Finish rate
  • 27 KO/TKO · 79%
  • 7 Decision · 21%

Recent results

  • Wvs Lamont Roach Jr. 🏆Zepeda def. Roach Jr. — unanimous decision (117-111, 117-111, 118-110) to win the vacant WBC lightweight titleRoach vs Zepeda · Aug 2, 2026

Auto-linked from KIAI's event coverage — updated as fights are decided.

Titles & honors

  • WBC Lightweight World Champion (2026–present)
  • Former WBC Interim Lightweight Champion (2024–2025)

Biography

William Zepeda Segura was born June 4, 1996, in San Mateo Atenco, Mexico, and turned pro in November 2015. Known as “Camaron” (Shrimp), the high-volume southpaw built an unbeaten 30-0 record and a reputation as one of the sport's most relentless punchers, signing a multi-year extension with Golden Boy Promotions in 2024.

He stopped Maxi Hughes in four rounds in March 2024, claimed the WBC interim lightweight title that November, and defended it with a majority-decision win over Tevin Farmer in a March 2025 rematch.

His unbeaten run ended in July 2025, when full WBC lightweight champion Shakur Stevenson out-boxed him over twelve rounds at Louis Armstrong Stadium in New York — the first loss of his 34-fight career. With Stevenson having since moved up in weight, Zepeda got a second chance to become a world champion — and took it, out-working Lamont Roach Jr. over twelve rounds for a lopsided unanimous decision (117-111, 117-111, 118-110) on August 1, 2026, in Las Vegas to capture the vacant WBC lightweight title, his first world championship.

Fight history

  • WLamont Roach Jr.W UD 12 (117-111, 117-111, 118-110)Aug 1, 2026 · Vacant WBC lightweight world title, The Theater at Virgin Hotels, Las Vegas
  • LShakur StevensonL UD 12Jul 12, 2025 · WBC lightweight world title, Louis Armstrong Stadium, New York
  • WTevin FarmerW MD 12Mar 29, 2025 · WBC interim lightweight title defense (rematch), Cancun
  • WMaxi HughesW TKO 4Mar 16, 2024 · Las Vegas, Nevada

FAQ

What happened when William Zepeda challenged for the WBC lightweight title?
He defeated Lamont Roach Jr. by unanimous decision (117-111, 117-111, 118-110) on August 1, 2026, at The Theater at Virgin Hotels in Las Vegas to win the vacant WBC lightweight title -- his first world championship.
What is William Zepeda's professional boxing record?
As of August 2026, 34-1 with 27 knockouts, following his unanimous-decision win over Lamont Roach Jr. to claim the WBC lightweight title.
Has William Zepeda held a world title?
Yes -- he is the WBC lightweight world champion after defeating Lamont Roach Jr. by decision in August 2026. He previously held the interim WBC lightweight title from November 2024 to July 2025, before losing his bid for the full title to Shakur Stevenson.
What is William Zepeda's nickname?
“Camaron” — Spanish for “shrimp.”
KIAI Editorial
  • Japan-based editorial team
  • Primary sources, cited
  • Variable facts dated

The KIAI editorial desk. We work from primary sources and date every claim that can change.