Grand National-winning jockey Liam Treadwell died aged 34 after taking "a cocktail of drugs", an inquest has heard.
Treadwell was found dead in his Shropshire home in June 2020 and a post-mortem found there was a high level of drug toxicity in his body.
He enjoyed a decorated career in the saddle during which he rode over 300 winners, including the 100/1 outsider Mon Mome in the 2009 Grand National.
Treadwell battled with depression after he suffered a major injury which left him unconscious for two to three minutes in 2016.
Referring to the incident, John Ellery, senior coroner for Shropshire and Telford & Wrekin, said: "If there is to be one significant turning point, it seems to be that."
Mr. Ellery added: "Beneath Liam's public success was a history of anxiety and depression."
The major injury at Bangor forced Treadwell to take six months away from the racecourse, during which he was supported by the Injured Jockeys' Fund.
But he felt "confused", the inquest heard, and decided to retire from racing in 2018.
After splitting from his wife, Emily Warner, Treadwell was administered to hospital after "drinking to excess", though he came out of retirement in March 2019 and said he "had purpose again" after joining the team of trainer Alastair Ralph.
Treadwell was affected by an on-off relationship and missed seeing people during the coronavirus-enforced lockdown, with a family statement saying he "didn't enjoy long periods on his own".
His friend and fellow jockey James Banks had taken his life aged 36 in February 2020.
The coroner said Treadwell took a "cocktail of drugs" on the evening of 22 June, before informing a friend of what he had done via text message.
Friends checked on his condition that night and found him to be lucid, but he was discovered dead on his bedroom floor the following morning after not arriving at work.
Mr. Ellery concluded Treadwell had considered the risks and did not intend to kill himself, and recorded a verdict of misadventure.
