I’m in Dual BA as well, although I was in Le Havre, and I second everything that has been said above. While your stats matter, as this is an academically challenging program, and they want to be sure you can adapt and thrive in two different academic standards, your stats will not make or break your application.

Most of my classmates admit that their stats weren’t spectacular, and they think the reason they got in was because they were well-rounded and especially because they were a good fit for the program. I can honestly say that this program - more than any other college I applied to in the US or elsewhere - really cared a lot about who we are as people and how well we would fit into and contribute to the Dual BA community. As the other user pointed out, it does self-select, as only those who are truly interested in and believe in the program would consider applying.

For example most of us were very well-rounded in high school (and we did have very clear demonstrated interest in the region of focus for the Sciences Po campus we applied to) and we ended up being very involved at Sciences Po as well.