Andy Ruiz Jr. and Damian Knyba meet tonight, Friday, September 4, in a heavyweight showdown at the Prudential Center in Newark, New Jersey. The former unified world champion returns to the ring after more than two years away, while the 30-year-old Polish heavyweight looks to rebound from the first loss of his professional career. The fight headlines the latest edition of The Fight, presented by Matchroom Boxing, TNT Sports and DAZN.
Who won the Andy Ruiz vs. Damian Knyba fight LIVE today? Boxing card results
The results below will be updated in real time as each bout ends, including the main event between Ruiz Jr. and Knyba. Until an official result is available, each fight will remain marked with a dash.
| CATEGORY / DIVISION | FIGHT | FINAL RESULT |
|---|---|---|
| Heavyweight | Andy Ruiz Jr. vs. Damian Knyba | — |
| Middleweight | Vito Mielnicki Jr. vs. Austin “Ammo” Williams | Vito Mielnicki Jr. defeated Austin Williams by unanimous decision (98-91 x3) |
| Lightweight | Alan Chaves vs. Eridson García | Eridson García defeated Alan Chaves by unanimous decision (99-87, 99-88, 98-88) |
| Super featherweight | Zaquin Moses vs. Angel Antonio Contreras | Zaquin Moses defeated Angel Antonio Contreras by fifth-round TKO (corner stoppage) |
| Super featherweight | Dennis Thompson vs. Jose Casillas | Dennis Thompson defeated Jose Casillas by unanimous decision (80-72, 79-73, 77-75) |
| Super welterweight | Kahshad Elliott vs. Jean Pierre Valencia | Kahshad Elliott defeated Jean Pierre Valencia by split decision (60-54, 55-59, 58-56) |
| Lightweight | Brooke Mullen vs. Bria Miller | Brooke Mullen defeated Bria Miller by unanimous decision (60-53, 60-53, 59-54) |
| Super lightweight | Jordan Simpson vs. Michael McDonald | Jordan Simpson defeated Michael McDonald by fourth-round TKO |
Ruiz enters with a 35-2-1 record and 22 knockouts, having not fought since his majority draw against Jarrell “Big Baby” Miller in August 2024. The 36-year-old Californian became the first heavyweight world champion of Mexican descent when he stunned Anthony Joshua in 2019, but his career has slowed considerably since losing the unified titles in the rematch later that year. He has reunited with longtime trainer Manny Robles for this comeback and recently signed a multi-fight promotional agreement with Eddie Hearn’s Matchroom Boxing.
Knyba brings a 17-1 record with 11 knockouts and a major physical advantage. The Polish heavyweight stands 6-foot-7 and is coming off a third-round stoppage loss to Agit Kabayel in January, when he challenged for the interim WBC heavyweight title. The matchup is therefore less about rankings than momentum: Ruiz is trying to prove that he can still compete at the highest level, while Knyba has the chance to establish himself with the biggest victory of his career.
The tactical question is straightforward but difficult to solve. Knyba has to make his reach count by keeping Ruiz at long range and working behind the jab. Ruiz, meanwhile, will be at his best if he can close the distance, get into the pocket and bring his hand speed into play. After such a long layoff, his timing and conditioning will be just as important as his punching power. The main card begins at 8 p.m. ET, with the main-event ring walks expected later in the evening.
Full Andy Ruiz Jr. vs. Damian Knyba boxing card
- Andy Ruiz Jr. vs. Damian Knyba — Heavyweight
- Vito Mielnicki Jr. vs. Austin “Ammo” Williams — Middleweight
- Alan Chaves vs. Eridson Garcia — Lightweight
- Zaquin Moses vs. Angel Antonio Contreras — Super Featherweight
