SKYRUNNER WORLD SERIES. MATTERHORN ULTRAKS « EXTREME » 2023. Our SKYRUNNER WORLD SERIES bring us the ninth race of the 2023 Skyrunner® World Series. Top skyrunners return to Zermatt for the Matterhorn Ultraks « EXTREME ».
This Friday, the world’s leading skyrunners take to the skies above Zermatt for the mighty Matterhorn Ultraks « EXTREME ». Since its 2019 debut, the Matterhorn Ultraks « EXTREME », a beautiful yet challenging event, has become a magnet for the most technically skilled skyrunners of the circuit.