In 2015 Leclerc spent a great deal of time in southern Argentine Patagonia. On February 21, he completed his first solo ascent of The Corkscrew (5.10d A1) on Cerro Torre. Leclerc wrote on his blog that soloing The Corkscrew felt like a brief 'step into the future' so to speak… in his efforts to fulfill his lifelong dream of becoming an explorer. Argentinian climber and mountain guide, Rolando Garibotti, wrote that Leclerc's ascent of The Corkscrew was one of earth-shifting proportions, by far the hardest route ever soloed on Cerro Torre and only the seventh solo overall. Later that year, Leclerc completed the second known free solo ascent of the Tomahawk / Exocet Link Up on Aguja Standhardt in Patagonia and then proceeded to conquer the Torre Egger, completing his Torres solo trifecta.