Get 40,000 points above your opponent. That's right, above. Build up your Groove Meter, find a big jump and do as many Ubers as you can. Repeat. As soon as you put 40k between your point score and Mac ...

Relax young Padawan, Uber icons aren't that difficult to collect at all. They are scattered about the peaks in Freeride mode but they aren't hidden. You will see them as you tool around the mountain.