I currently have a safety rating of 90. It had gone from 89 to 91 in a single race (Only race single player), but went down to 90 during a clean race (the very next race) where I actually expected an increase. Good battles, no accidents, etc. However, I have been stuck at 90 for the past few days. I have raced many many clean races, without issue doing everything I had done that increased my score. When passing the start/finish line I never see the SA number flash green either. Is there a maximum SA rating that can be attained?