| Marcelo Guimarães | |
| Other Names: | Magrão |
| Birth Date: | 25 June 1983 |
| Weight: | 171lb |
| Weight Class: | Welterweight Middleweight |
| Reach: | 73 in[1] |
| Style: | Wrestling, Brazilian Jiu-Jitsu |
| Stance: | Southpaw |
| Fighting Out Of: | Vila Velha, Brazil |
| Team: | X-Gym |
| Rank: | Black belt in Brazilian Jiu-Jitsu[2] |
| Years Active: | 2006-present |
| Mma Kowin: | 1 |
| Mma Subwin: | 2 |
| Mma Decwin: | 6 |
| Mma Koloss: | 2 |
| Mma Draw: | 1 |
| Sherdog: | 20277 |
Marcelo Zilio Guimarães[3] (born June 25, 1983) is a Brazilian mixed martial artist who competes in the welterweight division of the UFC.
In his UFC debut, Guimarães faced Dan Stittgen on July 11, 2012, at UFC on Fuel TV 4.[4] He won the fight via split decision.
Guimarães next fight was expected to take place on November 10, 2012, on against South Korean newcomer, Hyun Gyu Lim.[5] However, he was forced out of the bout with an injury and replaced by David Mitchell.[6]
Guimarães/Lim was rescheduled for March 3, 2013, at UFC on Fuel TV 8.[7] Guimarães lost via second round KO when he was caught flush with a knee.
Guimarães was scheduled to face Keith Wisniewski on September 4, 2013, at UFC Fight Night 28.[8] However, Guimarães pulled out of the bout citing an injury and was replaced by Ivan Jorge.[9]
Guimarães faced Andy Enz in a middleweight bout on June 28, 2014, at .[10] He won the fight via split decision.
Guimarães faced Vitor Miranda on March 5, 2016, at UFC 196.[11] He lost the fight via TKO in the second round.[12]
|-|Loss| align=center|9–2–1| Vitor Miranda| TKO (head kick and punches) | UFC 196| | align=center|2| align=center|1:09| Las Vegas, Nevada, United States||-| Win| align=center| 9–1–1| Andy Enz| Decision (split)| | | align=center| 3| align=center| 5:00| San Antonio, Texas, United States| |-| Loss| align=center| 8–1–1| Hyun Gyu Lim| KO (knee and punches)| | | align=center| 2| align=center| 4:00| Saitama, Japan| |-| Win| align=center| 8–0–1| Dan Stittgen| Decision (split)| | | align=center| 3| align=center| 5:00| San Jose, California, United States| |-| Win| align=center| 7–0–1| Lucas Rota| Technical Submission (rear-naked choke)| Jungle Fight 31| | align=center| 2| align=center| 3:07| Itu, Brazil| |-| Win| align=center| 6–0–1| Ildemar Alcântara| Decision (unanimous)| Jungle Fight 28| | align=center| 3| align=center| 5:00| Rio de Janeiro, Brazil| |-| Win| align=center| 5–0–1| Paulo Rodrigues| Decision (unanimous)| Jungle Fight 25| | align=center| 3| align=center| 5:00| Vila Velha, Brazil| |-| Win| align=center| 4–0–1| Erik Becker| TKO (punches)| Jungle Fight 22| | align=center| 2| align=center| 4:12| São Paulo, Brazil| |-| Win| align=center| 3–0–1| Ivan Galaz| Submission (rear-naked choke)| Jungle Fight 20| | align=center| 1| align=center| 1:35| São Paulo, Brazil| |-| Win| align=center| 2–0–1| Gilmar de Andrade| Decision (unanimous)| Jungle Fight 17: Vila Velha| | align=center| 3| align=center| 5:00| Vila Velha, Brazil| |-| Draw| align=center| 1–0–1| Gilmar de Andrade| Draw| Vila Velha Fight Combat| | align=center| 3| align=center| 5:00| Vila Velha, Brazil| |-| Win| align=center| 1–0| Willians Santos| Decision (split)| MMA: Kombat Espirito Santo| | align=center| 3| align=center| 5:00| Vila Velha, Brazil|