This solution may help you if you are like me, not so great at finding big jumps, doing tricks and then activating infinite boost via tricky.
The track for this one is in Explore -> Alaska -> Denali -> Emergency Exit, the same track as Avalanche Deadly Descent. in order to race in the event, you'll need around 20,000 credits So, you'll have a different visual, but it's nice as you can see who's behind or beside you much easier than the other tracks.
I was able to beat this without obtaining Tricky at all. Keep to the right, listen to the heli pilot, and make sure you are always continuously in motion. As long as you have armor equipped you shouldn't have any problems health wise.
Since you'll automatically be doing big jumps off of cliffs, do a trick to gain some boost. Nothing fancy, don't overdo it, just get some meter to give you more boost.
If you fall into a crevasse and rewind, then forget about it as you won't be getting Gold from that. Overall if you keep your run clean you should be fine. It'll take you a handful of tries to get it, or it might be on your first time, but I just find this track is easier than having me meter up to Super Tricky and then get infinite boost.
Time to beat is 2:26.90 and I'm not exactly skilled and I pulled off a 2:17.46 ; Lvl 9 Kaori, with a Level 7 Legendary All-Around Board, Lv 7 Epic All-Around Armor and one Lvl 9 Speed Mod. Don't know why I didn't plug two in, but you might even have more success if you double up your mods.
Good luck!