When i was 900, i beat an 1850. that was the biggest upset ive ever made, though i make upsets a LOT
That is a HUGE upset! But did the 1850 withdraw from the tournament after you upset him?
By the way, the largest upset that I've heard of in rated competitive OTB play is a 500 player defeating a 1600 player.
Back 30 years ago when I first started playing tournaments as a high school kid I didn't know much about the openings. In the first round of a weekend Swiss tournament I got paired up with an 1800+ "A" player. I think I must have been a 12 or 1300. I was scared. I had the White pieces.
I assumed he was a booked-up player, and me, a patzer who just played with his high school buddies on the chess team, and who didn't know anything more than the first moves of an opening, and the name of that respective opening was at a distinctive disadvantage. I knew the General Principles of Openings, but that was it.
So what I did was this so as to minimize my disadvantage. I fianchettoed both my bishops!! (Mind you, this was in the late 1970's, or early 80's. I can't remember exactly when I played this game.)
My 1800 opponent had no idea what the hell to do. His face was puzzled. "What is this patzer doing?" I chuckled to myself because I myself didn't know what I was doing either! All I knew was that I was going to take this 1800 out of the Book and into uncharted waters. Where I figured I had a better chance.
Well, as the good story goes, he blunders, and as a result, he resigns. I think it was within 20-25 moves. He was very courteous in the midst of his great disgust and we did a post-mortem. He asked me, "What was that opening?" I told him I didn't know.
Anyways, when the pairings came out for the 2nd round, I looked for his name. It wasn't there. I found out that he withdrew!! It was the first time I was ever exposed to someone withdrawing from a tournament after just playing one game!
I asked an experienced player why someone would do that. After all, they can't get a refund. The experienced player said that unless it was an emergency, the withdrawing player probably felt that he was in bad form, and didn't want to lose any more rating points because they felt they weren't playing well.
I looked at him. Then it dawned on me. This 1800 just lost to a 1200-1300 player who just fianchettoed both bishops as an experiment! He didn't want to lose any more rating points!
I am still laughing at the memory of this episode to this day. Chess is hilarious.