Jesus marcelo andres Cuellar started off his pro career aged 21 and currently has a record of 28-2-0. Cuellar now looks to build on the experience gained in his first 30 fights. Cuellar's longest win streak is 17 fights between June 2008 and July 2011. His longest KO streak in his 30 fights is 5 fights long.
Getting rid of his debut fight nerves early, Cuellar took on Cristian omar Gimenez in June 2008 and claimed a stoppage victory (round 1, TKO). Cuellar was the first person to have ever stopped Gimenez. Cuellar then went on to win his next 15 fights - fighting 5 times in 2008, 5 times in 2009 and 5 times through 2010 and 2011 racking up wins against Victor Cardozo coronel, Luis armando Juarez and Julio cesar Ruiz amongst others.
Cuellar entered his next fight with 7 wins and took this to 8 with a win against Julio cesar Ruiz on May 23rd, 2009. Cuellar's fight against Julio cesar Ruiz came in the 3rd round of a 10 round fight via TKO. Cuellar became the first person to stop Ruiz. 3 wins followed where Cuellar went on to be the First to beat Luis armando Juarez, 2nd person to stop Victor Cardozo coronel (Round 9 TKO) and 2nd person to stop Lucas rafael Baez (Round 1 TKO).
Next was Claudio rosendo Tapia on April 30th, 2010 where Cuellar took the win continuing his unbeaten streak. Tapia was stopped in the 11th round via RTD crowning Cuellar as the first person to stop this opponent. Cuellar's win streak of 12 rose to 16 following 4 great wins, becoming the 3rd person to stop Ramon armando Torres, 3rd person to stop Diego herminio alejandro Sananco (Round 7 RTD) and 9th person to stop Jose Saez.
On July 23rd, 2011, Cuellar was in action again beating Hugo orlando Gomez taking his win streak to 17 wins. Gomez proved to be no match for Cuellar, and Cuellar became the first person to stop Gomez via TKO during round 3.
On October 15th, 2011, Cuellar took on and was defeated by Oscar Escandon in his first career defeat meaning his career tally went to 17-1-0. Cuellar's fight against Oscar Escandon was Cuellar's first stoppage defeat of his career. This came via TKO in the 7th round of a 12 round fight. Fights against Rico Ramos, Vic Darchinyan, Juan manuel Lopez and 7 others followed where he won all 10 fights taking his winning streak to 27 wins.
Cuellar kept his losses at 1 by beating Jonathan Oquendo on December 5th, 2015. Cuellar was the 5th person to beat Jonathan Oquendo where he showed his talent as a technical boxer, beating him over 12 rounds in his 29th professional fight.
Cuellar's next defeat of his career came against Abner Mares on December 10th, 2016. Opponent Mares fought well and proved he was technically superior to Cuellar over the full 12 round fight. The fight came to a close after the final bell, Mares the victor on the judges decision (SD), with Cuellar left wondering where his career will go next.