‘Mentally tired’ Eileen Gu claims silver as Mathilde Gremaud roars back for gold

• US-born Chinese skier adds to gold won last week
• Gremaud soars to victory; Kelly Sildaru takes bronze

Switzerland's Mathilde Gremaud soared to gold in the Olympic women's freeski slopestyle final after holding off another last-gasp charge by Eileen Gu, the American-born emerging superstar representing China, who settled for silver by the narrowest of margins but stayed on course for a historic treble at the Beijing Games.

The 22-year-old Gremaud, who snuck into the final with the 12th-highest score in qualifying and scored a meagre 1.00 on her first of three runs on Tuesday after breaking a binding and losing a ski, roared back with an 86.56 on her second attempt to leapfrog the gaggle of favourites atop the leaderboard.