Here is a list of Rosario's best fights. For a list of Rosario's losses, refer to "Jeison Rosario Losses".
On January 18, 2020 Jeison Rosario fought Julian Williams in a super-welterweight world-title fight for Williams' WBA (Super) and IBF titles. Rosario was 24 years old and with a record of 20-1-1 (14), and Williams was 29 years old and with a record of 27-1-1 (16). Rosario stopped Julian Williams via 5th-round TKO and is crowned the new super-welterweight world champion.
On April 20, 2019 Jeison Rosario faced off against Jorge Cota at age 24. He was coming in with a record of 19-1-1 (13), and Cota was 31 years old and with a record of 28-2 (25). Rosario won the fight via 10-round split decision.
On November 29, 2014 Jeison Rosario faced off against Jose Vidal Soto in a welterweight bout at age 19. He was coming in with a record of 8-0 (5). Rosario stopped Jose Vidal Soto via TKO.