Magnus Midtbø, born 18 September 1988, is a Norwegian rock climber. In May 2013, Midtbø on-sighted the 8c+ (5.14c) route Cosi fan tutte at Rodellar in Spain. As of April 2013, only four other people had on-sighted at the 8c+ level or higher: Patxi Usobiaga, Adam Ondra, Ramon Julian Puigblanque, and Alexander Megos. In August 2010, he made his hardest ascent to date, when he sent the route Ali Hulk sit start extension in Rodellar in Spain. The route is a boulder (climbed without rope) and a sport climbing route linked together and the first ascent was made by Daniel Andrada in 2007. The grade is 9b (5.15b) and at 2013 there are only six climbers who have climbed routes at this level in the world. In an interview with UK Climbing, Midtbø stated that there were many difficulties with this climb, including resting in the first part for working the route (it's a boulder without rope), and the strain on the core because it is overhanging.