My worst loss came rather quickly!
My weirdest win(s) was winning a round in a tournament because 4 of my 5 opponents timed out against me, rocketing my rating waaaaay above what it should be. This put me in a rating bracket for my next tournament waaaay above my ability, so now I'm on a losing streak any my rating is gradually falling back to its rightful place. 
Here I've got one: