Born on 3 February 1972 in Neuilly-sur-Seine, Thierry Chabagny lives in Finistère and has belonged to the Pôle France offshore racing centre at Port-La-Forêt since 2001. He has raced the Solitaire du Figaro 17 times, finishing second in 2006, and the Transat AG2R eight times, winning it in 2016 with Erwan Tabarly aboard Gedimat.
A crew member of Banque Populaire V, he holds the 2012 Jules Verne Trophy record with Loïck Peyron. He later served as helmsman-trimmer on Spindrift 2 for round-the-world attempts, then crewed on the maxi trimaran Banque Populaire 11 with Armel Le Cléac'h.
In Class40 he finished second in the 2007 Transat Jacques Vabre with Dominic Vittet on Atao Audio System, and returned to the class from 2024: the Québec–Saint-Malo transat with Vincent Riou, then several races with Quentin Le Nabour on Bleu Blanc Planète Location, including a win in the 2026 Armen Race.
