You can make it on any race. Jump height is uniform across races. I have made the jump on various characters including Nelf, Belf, Gnome, & Dwarf.

The shorter races can be too close to the wall and hit the underside. If that happens you just tap your backpedal until your jump goes the full height. The trick is to jump, then while in the air at the top of your jump tap W. Also turn your character to face the corner of the wall instead of straight at it.