2010 ISF with 105k miles

took the car to the drag strip, did one 1/4 mile run, no burnouts or anything stupid.....aaaand the next morning when i throw it in reverse to back the car up there is a scraping creaking noise... but only when hitting the gas in reverse.

thoughts on what this could be? so bizarre after doing one run at the strip without doing a burnout and launching at 1800 rpm...