The Kathmandu Valley Rim 100 miler is named after the god Manjushree. According to the legend, It is believed that Manjushree arrived at the edge of the valley while being on a pilgrimage, encountering a large lake that once filled the valley. Upon arrival, the god saw a lotus flower in the centre of the lake, which emitted brilliant radiance. Having walked around the valley rim, the god reached Chovar, where Manjushree used its flaming sword to cut a gorge, allowing the lake to drain and the Kathmandu valley to appear. The place where the lotus flower settled became allegedly became the Swayambhunath Stupa and with the valley being no longer under water, it became habitable and Kathmandu was founded. This has left Manjushree in a way to be the patron of the valley and to leave tales of the route the god walked before cleaving the rim and allowing the land to emerge.

There are different opinions on what the exact route is that Manjushree travelled and so the Manjushree trail race is in no way trying to exactly replicate this or claiming to be a pilgrimage in anyway. Rather than that, it is inspired by the legend and therefore has chosen to honor this in its name and logo.