Run starts at about 2 minutes into the video, run ends at 11:11:26 in the video
Okay run, didn't take any breaks and thankfully didn't have any trouble with the gold medallions. I recently 100%'d this game casually, so I just felt like I might as well do a speedrun for the heck of it.
Overall my strats were super safe and casual for the most part, save a few speedrun strats I remember off the top of my head, like using the patrick conveyor belt glitch. Even using these super safe strats, sub 11 should certainly be possible without messing up a ton. Sub 10 is probably possible with actual careful routing of fastest route for each individual medallion.
I might try and route this some day, but since I got the record I'll probably chill on this game for a bit.