Megaton Dias

Wellington Leal Dias Santos, known as Megaton Dias, is a Brazilian jiu-jitsu (BJJ) practitioner, and 7th degree coral belt of the Gracie Humaitá jiu-jitsu association under Royler Gracie. Wellington originally trained under Rogerio Camoes and later at the Gracie Humaitá jiu-jitsu school in Rio de Janeiro. Wellington received his black belt at the age of 18. Wellington is currently a coral belt under Royler Gracie.

Dias is nicknamed "Megaton" because of his judo training and propensity to launch his competitors high into the air, similar to the blast of a nuclear bomb. "Megaton" was named the #1 ranked nickname in MMA by SubFighter in 2007.

Grappling career
Wellington is a multiple Pan-American medalist, European medalist, Worlds medalist, US National medalist, Rickson Gracie International Championship medalist, Rio de Janeiro State Champion and ADCC veteran.

He is the only Brazilian jiu-jitsu competitor to have competed in every World Jiu-Jitsu Championship, since  the first competition in 1996. He still competed in adult black belt divisions of smaller IBJJF tournaments well into his 50s, even earning gold medals against adult competitors as recently as 2023.

Dias competed in the lightweight division of the IBJJF World Championship 2023, becoming the first Coral belt to ever compete at the event.

Master career
Dias competed at the IBJJF Master International - North America Championship on May 31, 2023 and won gold medals in both the Master 6 lightweight and absolute divisions.

Dias competed at the IBJJF Master World Championship on September 2, 2023, where he won the master 6 lightweight division.

Personal life
Wellington Dias resides in Phoenix, Arizona, where he directs the Megaton Brazilian Jiu-Jitsu Academy, the first BJJ academy in Arizona. Megaton has trained in judo and BJJ since 1976. His wife Luciana and daughter Mackenzie Dern are also black belts in the discipline, under his tutelage.

Instructor lineage
Mitsuyo "Count Koma" Maeda → Carlos Gracie, Sr. → Helio Gracie → Royler Gracie → Wellington "Megaton" Dias