Here is a list of Ruiz Jr.'s best fights. For a list of Ruiz Jr.'s losses, refer to "Andy Ruiz Jr. Losses".
On September 4, 2022 Andy Ruiz Jr. faced off against Luis Ortiz in a heavyweight bout at age 32. He was coming in with a record of 35-2 (22), and Ortiz was 43 years old and with a record of 33-2 (28). Ruiz Jr. won the fight via 12-round unanimous decision.
On June 1, 2019 Andy Ruiz Jr. fought Anthony Joshua in a heavyweight world-title fight for Joshua's WBA (Super), IBF and WBO titles. Ruiz Jr. was 29 years old and with a record of 33-1 (22), and Joshua was 29 years old and with a record of 22-0 (21). Ruiz Jr. stopped Anthony Joshua via 7th-round TKO and is crowned the new heavyweight world champion.
On April 20, 2019 Andy Ruiz Jr. faced off against Alexander Dimitrenko in a heavyweight bout at age 29. He was coming in with a record of 32-1 (21), and Dimitrenko was 36 years old and with a record of 41-4 (26). Ruiz Jr. stopped Alexander Dimitrenko via retirement.
On May 1, 2021 Andy Ruiz Jr. faced off against Chris Arreola in a heavyweight bout at age 31. He was coming in with a record of 34-2 (22), and Arreola was 40 years old and with a record of 38-6-1 (33). Ruiz Jr. won the fight via 12-round unanimous decision.
On December 20, 2014 Andy Ruiz Jr. faced off against Siarhei Liakhovich in a heavyweight bout at age 25. He was coming in with a record of 24-0 (17), and Liakhovich was 38 years old and with a record of 26-6 (16). Ruiz Jr. won the fight via 10-round unanimous decision.
On July 7, 2018 Andy Ruiz Jr. faced off against Kevin Johnson in a heavyweight bout at age 28. He was coming in with a record of 31-1 (20), and Johnson was 38 years old and with a record of 32-9-1 (16). Ruiz Jr. won the fight via 10-round unanimous decision.
On March 10, 2018 Andy Ruiz Jr. faced off against Devin Vargas in a heavyweight bout at age 28. He was coming in with a record of 30-1 (20), and Vargas was 36 years old and with a record of 20-4 (8). Ruiz Jr. stopped Devin Vargas via KO.
On May 17, 2014 Andy Ruiz Jr. faced off against Manuel Quezada in a heavyweight bout at age 24. He was coming in with a record of 22-0 (16). Ruiz Jr. stopped Manuel Quezada via TKO.