Ben Bonner Knocks Out Austin Trout in Round 2 to Win BKFC 155-Pound Title

Q: After a brutal knockout ended his undefeated run at 40, is this the end for crossover champion Austin Trout?

Not necessarily, but the loss makes Austin Trout’s next decision far more consequential. The facts are stark. Trout, 40, was knocked out by Ben Bonner 30 seconds into the second round at BKFC Liberty Brawl in Philadelphia, ending his 5-0 bare-knuckle start and his BKFC welterweight title reign. Bonner also took the vacant lightweight belt, stopping Trout’s bid to become a two-division BKFC champion. It was a damaging defeat because Trout had been one of the sport’s top crossover success stories, ranked near the top of BKFC’s pound-for-pound list and coming off wins over Ricardo Franco, Carlos Trinidad-Snake and Luis Palomino. That said, one knockout does not by itself mean retirement. Trout had remained highly competitive deep into his combat-sports career, and before this fight he was openly talking about staying active for major opportunities, including a possible Conor McGregor bout. There has been no public retirement announcement. The bigger issue is what the knockout says about risk versus reward at this stage. Trout is no longer building a legacy from scratch; he already has one as a former WBA champion and the first boxing world champion to win a BKFC title. After a brutal stoppage at 40, the medical review, recovery, and his appetite for more punishment will matter more than rankings. So this is not clearly the end, but it is a natural crossroads. If Trout returns, it will likely be because he still sees a meaningful fight worth the danger.

Q: Did Austin Trout's 'Rocky IV' tribute tempt fate, leading to his eerily similar second-round knockout loss?

No. There is no factual basis to say Austin Trout’s “Rocky IV” tribute caused the loss, but the resemblance was undeniably striking. The facts are clear: Trout entered BKFC Liberty Brawl in Philadelphia dressed like Apollo Creed, with a live performance of “Living in America,” directly echoing Creed’s famous entrance in *Rocky IV*. About 30 seconds into the second round, Ben Bonner landed a heavy right hand that knocked Trout out, ending Trout’s five-fight BKFC unbeaten run and his title reign. That is why the moment drew so much attention. In the film, Apollo Creed also makes the same flamboyant entrance and is stopped in the second round by Ivan Drago. The parallel was close enough that social media and fight coverage quickly framed it as an eerie case of “tempting fate.” But that remains symbolism, not evidence. Trout lost because Bonner landed the decisive punch in a combat sport where one clean shot can change everything. Bonner’s win also reflected his own performance and timing, not the theme of Trout’s walkout. So the fairest answer is that Trout did not literally “tempt fate,” but he did create a cinematic setup that made the second-round knockout look uncannily similar to *Rocky IV*. The tribute did not cause the defeat, yet it made the outcome feel unusually dramatic and memorable.

3 articles · Updated · Sports Illustrated · Jul 4

Second-round knockout gave Ben Bonner the vacant BKFC lightweight belt in Philadelphia, ending Austin Trout’s bid to become the promotion’s third two-division champion.
A thudding right hand stopped Trout, snapping the former boxing world champion’s 5-0 BKFC run after he entered as the welterweight titleholder and betting favorite.
The July 3 Liberty Brawl card had been built around Trout’s push for more history and Britain Hart’s strawweight title defense during a U.S. 250th-anniversary event in Philadelphia.
Bonner’s win reshaped the event’s headline result, denying BKFC one of its crossover milestones and handing Trout his first loss since joining the bare-knuckle promotion in 2023.