On January 18, 2020, a 24-year-old Jeison Rosario (19-1-1, 13 KOs) got a shot at the WBA (Super) and IBF super-welterweight titles held by 29-year-old American boxer Julian Williams (27-1-1, 16 KOs).
Rosario came in to the fight on a 5-fight win streak with a 61% KO rate, and was fighting after a gap of 8 months and 29 days. Williams was on a 5-fight win streak with a 55% KO rate, and fighting after a layoff of 8 months and 7 days.
Jeison Rosario stopped the champion via TKO in the 5th round of the 12-round world-title fight, winning the first world titles of his career, and is crowned the new WBA (Super) and IBF super-welterweight champion. Rosario improves his record to 20-1-1 (14 KOs), while Williams adds a loss to his record at 27-2-1.
On November 19, 2015, a 20-year-old Jeison Rosario (9-0, 6 KOs) and Euri González met in the ring in a super-welterweight bout.
Rosario came in to the fight on a 9-fight win streak with a 66% KO rate, and was fighting after a gap of 7 months and 1 day.
Jeison Rosario stopped Euri González via TKO in the 3rd round. Rosario improves his record to 10-0 (7 KOs)
On November 30, 2018, a 23-year-old Jeison Rosario (16-1-1, 11 KOs) and Juan Carlos Rodríguez met in the ring.
Rosario came in to the fight on a 2-fight win streak with a 61% KO rate, and was fighting after a gap of 3 months and 6 days.
Jeison Rosario stopped Juan Carlos Rodríguez via KO in the 3rd round. Rosario improves his record to 17-1-1 (12 KOs)
On November 29, 2014, a 19-year-old Jeison Rosario (7-0, 4 KOs) and Jose Vidal Soto met in the ring in a welterweight bout.
Rosario came in to the fight on a 7-fight win streak with a 57% KO rate, and was fighting after a gap of 2 months and 2 days.
Jeison Rosario stopped Jose Vidal Soto via TKO in the 2nd round. Rosario improves his record to 8-0 (5 KOs)
On April 18, 2015, a 20-year-old Jeison Rosario (8-0, 5 KOs) and Rafael Lorenzo met in the ring.
Rosario came in to the fight on a 8-fight win streak with a 62% KO rate, and was fighting after a gap of 4 months and 20 days.
Jeison Rosario stopped Rafael Lorenzo via KO in the 1st round. Rosario improves his record to 9-0 (6 KOs)
On November 10, 2023, a 28-year-old Jeison Rosario (23-4-1, 17 KOs) and Israel Valerio Nina met in the ring.
Rosario came in to the fight on a 1-fight losing streak with a 60% KO rate, and was fighting after a gap of 1 year and 5 days.
Jeison Rosario stopped Israel Valerio Nina via TKO in the 2nd round. Rosario improves his record to 24-4-1 (18 KOs)
On July 10, 2022, a 27-year-old Jeison Rosario (22-3-1, 16 KOs) and Francisco Ernesto Sanchez met in the ring.
Rosario came in to the fight on a 2-fight win streak with a 61% KO rate, and was fighting after a gap of 4 months and 20 days.
Jeison Rosario stopped Francisco Ernesto Sanchez via TKO in the 2nd round. Rosario improves his record to 23-3-1 (17 KOs)
On November 21, 2021, a 26-year-old Jeison Rosario (20-3-1, 14 KOs) and Reinaldo Gonzalez met in the ring.
Rosario came in to the fight on a 2-fight losing streak with a 58% KO rate, and was fighting after a gap of 4 months and 26 days.
Jeison Rosario stopped Reinaldo Gonzalez via TKO in the 2nd round. Rosario improves his record to 21-3-1 (15 KOs)
On September 23, 2016, a 21-year-old Jeison Rosario (11-0, 8 KOs) and Carlos Rafael Cruz met in the ring.
Rosario came in to the fight on a 11-fight win streak with a 72% KO rate, and was fighting after a gap of 5 months and 8 days.
Jeison Rosario stopped Carlos Rafael Cruz via KO in the 2nd round. Rosario improves his record to 12-0 (9 KOs)
On April 15, 2016, a 21-year-old Jeison Rosario (10-0, 7 KOs) and Rafael Lorenzo met in the ring for the 2nd time,.
Rosario came in to the fight on a 10-fight win streak with a 70% KO rate, and was fighting after a gap of 4 months and 27 days.
In the rematch, Jeison Rosario stopped Rafael Lorenzo via TKO in the 2nd round. Rosario improves his record to 11-0 (8 KOs)