For those of you without any friends that own SSX, or that don't want to add random other people as friends to get this achievement, I recommend creating a free Xbox live account for this achievement. After creating it, send a friend request to your primary account, log in on the primary and accept it, then log back into your new free account.
You can use your free account to race on all the first track, shortest trick events (just race to the bottom as fast as you can, without doing any tricks). Once you've completed one on each range, exit the game and then log in to your primary account. Head to each range and beat the extremely easy trick score, and then you've unlocked the achievement!
Any track will work (including Deadly Descent, as suggested above), but using the shortest trick it track doesn't require getting enough money on the free account to unlock the tracks.
Just make sure you friend the other account (it can't be a local profile only), because it has to show up in your SSX rivals list.