Scott Westgarth, 31, from Penistone, died after his 10-round victory over Dec Spelman at the Doncaster Dome leisure centre in February 2018, a three-day inquest in the town has heard.
On Thursday, Coroner Nicola Mundy recorded a conclusion of misadventure.
Ms Munday said one of her key concerns at the beginning of the hearing was whether the correct decision was taken to take the boxer to the nearest hospital - the Doncaster Royal Infirmary (DRI), which does not have neurosurgical unit.
Sheffield Wednesday boss and chairman unhappy after attackers leave for Premier League
‘One or two wilted’ – Sheffield Wednesday to learn from last year as Darren Moore makes brutally honest transfer admission
Sheffield Wednesday injury update on Michael Smith, concerns cooled over defensive pair
Sheffield Wednesday identify two possible striker transfers – meeting to be held to discuss next steps
Sheffield United Player Ratings: One man stands out as star man as Blades bow out of cup at West Brom
But the coroner concluded it was "an appropriate decision" because casualties were only transferred directly into neurosurgical units in very exceptional circumstances and, given his injuries, the 40-minute direct journey to the unit at the Royal Hallamshire Hospital in Sheffield would probably have meant he would have died anyway.
Speaking after the coroner's conclusion, Mr Westgarth's brother, Adam, said he accepted the coroner's ruling, but said the Doncaster Dome was too far from a neurosurgical unit for professional bouts to take place there.
And he called for mobile brain scanners to be routinely located ringside with staff trained to use them.
Adam said: "The Doncaster Dome is a little bit too far from a neurosurgical unit I think, which had a part to play in this.
"One question I have to ask is that brain scanners could have detected the bleed at an earlier stage and appropriate action could have been taken straight away.
"There just wasn't enough physical signs in that first half an hour, 40 minutes until things progressed too bad."
Mr Westgarth said he believed the scanners cost around £14,000 each, but could raise concerns about unseen problems within three minutes.
He said: "That's a small price to pay when it comes to saving boxers' lives.
Mr Westgarth added: "He went out out on a high, saving five people through organ donation.
"And I believe he was the only boxer ever to win his fight and then lose his life. I'll love him forever and I'll miss him."