Wellington "Megaton" Dias
Wellington Leal "Megaton" Dias  is a Brazilian jiu-jitsu (BJJ) practitioner, and an official black belt representative of the Gracie Humaitá jiu-jitsu association under Royler Gracie. Wellington originally trained under Rogerio Camoes and later at the legendary Gracie Humaitá jiu-jitsu school in Rio de Janeiro. Wellington received his black belt at the age of 18. Wellington is currently a fifth degree black belt under Royler Gracie.
|Wellington "Megaton" Dias|
Megaton Dias teaching a Gracie Jiu-Jitsu seminar in November 2011.
|Born||October 2, 1967|
Rio de Janeiro, Brazil
|Residence||Phoenix, Arizona, United States|
|Teacher(s)||Royler Gracie, Rickson Gracie, Helio Gracie|
|Rank||Gracie Jiu-Jitsu 5th degree black belt in |
3rd degree black belt in judo
|Notable students||Kyle Watson, Mackenzie Dern, Evan Dunham, Jack McVicker|
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 Abu Dhabi veteran, among other accomplishments.
Wellington Dias resides in Phoenix, Arizona where he directs the Megaton Brazilian Jiu-Jitsu Academy, the first Brazilian jiu-jitsu academy in Arizona. Megaton has trained in judo and Brazilian jiu-jitsu since 1976. His wife Luciana and daughter Mackenzie Dern are also black belts in the discipline, under his tutelage.
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.
- "World Master IBJJF Jiu-Jitsu Championship 2014" (PDF). ibjjfdb.com. 2014-11-02. Retrieved 2014-11-10.
- "Wellington "Megaton" Dias (Gracie Humaitá)". BJJ Heroes. September 5, 2010. Retrieved December 12, 2012.
- "Megaton main BJJ (GI) achievements since 2004". Maranking.com. 2014-01-18. Retrieved 2014-01-18.
- "Megaton Brazilian Jiu Jitsu Belt List". Retrieved 2016-10-05.
- Megaton Brazilian Jiu Jitsu. "teammegaton.net". Retrieved 2007-11-15.
- subfighter.com. "Best/Worst Nickname Awards". Retrieved 2007-11-15.