The athletes are over half way to Monaco and the pain is starting to show.
The face of Ferdinand Van Schelven (NED) shows the strain as he hikes near Innsbruck on day 3.
An athlete flies near Ortler in Sulden, Italy on day 4.
Thomas de Dorlodot (BEL) rests and stretches during the Red Bull X-Alps 2013 at Terfens, Austria on day 4.
Christian Maurer (SUI1) flies above Interlaken after receiving a rapturous welcome from the home crowd. Next stop: the Matterhorn
The Aletsch Glacier is the largest glacier in the Alps and makes a dramatic backdrop for the athletes.
It doesn't get more spectacular than this: Christian Maurer (SUI1) flies past the awe-inspiring Matterhorn at approximately 17:30 on day 5. By the end of the day, his lead will look unassailable. Next stop: Mont Blanc.
Clement Latour of France (FRA1) is in the lead chasing group, fighting to catch up with Maurer on the fifth day of the race. Here, he is grounded in poor weather near the Furkapass.
Since the start, the Swiss athlete and two-time winner Christian 'Chrigel' Maurer has dominated the race after making some awesome flights.
Clement Latour of France near the Furkapass in Switzerland on day 5.
Only two modes of transport are allowed — flying and hiking. When conditions do not permit flying, the only thing to for athletes to do is start walking! Here Clement Latour (FRA1) climbs near the Furkapass in Switzerland.
An athlete above the Aletsch Glacier near Fiesch, Switzerland on day 5 of the Red Bull X-Alps.
Clement Latour (FRA1) takes to two feet in his battle for a podium near the Grimsel Pass, Switzerland.
John Chambers (GBR) checks his way during the Red Bull X-Alps 2013 on the Grimsel Pass, Switzerland with his supporter on day 5.