Ciarán Ó Lionáird, a London 2012 Olympian and former Irish 1,500m champion, was found dead in Montreal on the morning of Tuesday, June 9. He was 38. No cause of death has been released.
Ó Lionáird grew up outside Macroom in County Cork and ran for Leevale AC. His 1,500m best of 3:34.46 is the sixth-fastest time ever run by an Irishman.
A late breakthrough
Ó Lionáird joined West Muskerry AC at age seven and broke Irish age-group records at nine and ten, according to the Olympic Federation of Ireland. He ran 3:50.10 for 1,500m at 16, took bronze at the 2005 European Youth Olympic Festival in Lignano, Italy, and finished 10th at the World Youth Championships that same year.
He moved to the United States on a college scholarship, spending most of his NCAA career at Michigan before transferring to Florida State for his final year in 2009.
The breakthrough came in 2011, when he dropped his 1,500m best from 3:48.36 to 3:34.46 in a single summer. He reached the final at the 2011 World Championships in Daegu and placed 10th, the last Irishman to make a 1,500m world final until Andrew Coscoran finished 12th in Tokyo in 2025.
Oregon, London, and Gothenburg
After Daegu, Ó Lionáird briefly joined the Nike Oregon Project under Alberto Salazar before switching to the Nike Oregon Track Club in Eugene under British coach Mark Rowland. He ran a mile best of 3:52.10 at the 2013 Millrose Games.
His London Olympics were derailed by a recurring Achilles injury. He went out in the heats of the 1,500m, finishing 13th.
“This has been the worst experience of my life, there’s no positives I can take from this,” he told RTÉ afterward. “I’m going to find something else to do with my life.”
He came back the following March at the European Indoor Championships in Gothenburg, striking for the lead on the last lap of the 3,000m and holding on for bronze. The rest of 2013 was lost to injury. In 2014 he won the Irish 1,500m title in Santry and qualified for the European Championships final in Zurich, where he was clipped mid-race and could not finish.
After another injured season in 2015, Ó Lionáird retired before the 2016 Rio Olympics at age 28. He briefly resumed training in Flagstaff, Arizona during the 2020 lockdown, hinting at a comeback for the delayed Tokyo Games. Nothing came of it.
After the track
Known affectionately in Irish athletics as “Mad Len,” Ó Lionáird was outspoken about the financial pressures on professional runners and the challenges athletes face when their careers end.
He worked as a shoe adviser for Nike after retiring, then moved into the music and entertainment scene in Los Angeles. He had been based in Topanga, California in recent months.
The Olympic Federation of Ireland paid tribute on Wednesday, calling his death “a profound loss to Irish sport.”
“Throughout his journey, Ciarán was admired for his competitive spirit, his intelligence and the honesty with which he spoke about the realities of high-performance sport,” the federation said. It closed with the line: “Once an Olympian, always an Olympian.”
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