I can't beat any of them! I know where some jumps are but most of the time I don't even get like half of the points that you have to get. Any help would be great.

I'm in the same boat. I've just avoided stunt runs.

Go to the quarry off of South Mountain by the dam. You can get there from every stunt run, and can score over a million easily.

Just do like ShaggyChu says and get to the quarry. Tap your boost and do some stunts on the southernmost bridge while you're on the way there.

Stunt runs are the hardest events to complete, I've finished the whole game apart 4 of the stunt runs. I guess persistance will pay off eventually

I hate Stunt Runs. They are all I need to get my Elite license or whatever the final license is...

I preferred going to the bridge with the 4 ramps and 2 billboards on. If you can combo to there then drift around to the big jump on the dam, you can normally get a 15-ish combo going.

"I preferred going to the bridge with the 4 ramps and 2 billboards on. If you can combo to there then drift around to the big jump on the dam, you can normally get a 15-ish combo going."

•     I don't understand what's so hard with stunt runs.... Simplest route I have is to just head out toward the Express way bridge, go down toward the city doing flatspins on the jumps and hitting the bililboards.
•  Once you're finished with the bridge do the cargo run and super jumps in the naval base.
•  Hit the shortcuts on the right to stay southernmost and flatspin on the left jump when it has two jumps right next to each other. 
• You'll exit in a large avenue. Go up the steps and hit the billboard on the left. 
• keep going down what I like to call "big street" (the one with all the billboards  lined up in the center of the road. that is above the freeway)
• Turn around and go toward the wild cats stadium