I once won a game where I had a rating of like 200 and my opponent had around 600 (also had +12% accuracy compared to me) because, in a last ditch effort to save the game, I set up a rook sacrifice to bait him into hanging mate in 1. And it worked. He lost with like +13 material. Lol
I can't find the game, but here's the last few moves of it:
It appears to have actually been +10 material, but you get it.
I managed to break a personal record by obtaining a win with a game review rating of 950. LOL
How is this even possible?