Leigh Murray Brown, 44, was found guilty by a Southport District Court jury in August 2019 of one count of rape and not guilty on a second.

During the trial, the court was told how the pair met on Tinder in June 2017 and agreed to meet in a Gold Coast pub.

In messages exchanged between the pair, Brown described himself as "dominant and rough".

They went back to the woman's apartment to have sex.

During the encounter, Brown turned violent, slapping the woman in the face, choking her and biting her chest.

The woman repeatedly said no, struggled against him and asked him to stop.

The electrician claimed the woman had consented to "rape role play" and did not use the safe word they had set up - "Buddha".

The woman claimed she never agreed to a safe word or to "rape role play" but admitted thanking Brown "for a great night" after the event.

The court was told the woman was bipolar and had a longstanding psychiatric history.

In the judgment published on Friday, Justice Frances Williams found the jury's guilty verdict was "unreasonable".

"The jury, acting rationally, ought to have entertained a reasonable doubt as to the appellant's guilt of having committed rape," Justice Williams said.

Australian Associated Press