Oil pan gasket end pushed out

Well had a relatively good weekend racing. The track was wet and very fast. I finally got the car set up figured out (and how to drive it) on a wet track. I went from last 10th to 4th in the heat race. The car was working really good, but when I got back I was leaking oil again. So for the feature I was put up with the slam brothers (they drive like it's an enduro), and I didn't wanna push it too hard so I wasn't driving nearly as hard as I should have been because of the oil leak.

So I got it up on stands today and the rear corner of the rubber seal for the oil pan is pushed out again. This happened before I figured I put it in wrong or something. It's a Kevko oil pan this year. Last year I ran a stock pan and had no problems. What am I doing wrong?
Author: JVMopar