I found out about Pitch Wars toward the very end, so as you can guess, I entered last minute too. [New Goal: Look at Twitter more than once a month.] I thought I'd done my research thoroughly, but I clearly didn't, as you can see by the bonus award I got from these kind pitch mentors, Stacey Lee and Stephanie Garber:
http://www.staceyhlee.com/our-pitch-wars-picks-bonus-awards/
I also got a nice, personalized rejection from the other mentor I submitted to. The mentors were so kind that it really makes me want to try again next year.
And to do a better job keeping up on contest dates!