How about a company that burned me? Quite a few years back, I worked for a bank on the corporate side. A couple hundred people entered a bracket sponsored by work so no entry fee. It was the first time the company had done this and they didn't know what the participation level would be. I won and it wasn't close. The championship game didn't matter and this was a while back so my memory may be foggy, but I don't think either of the semis mattered either. For winning, I was gifted a golf shirt embroidered with the bank logo. It was too small, they didn't ask me what size I was, they just gave it to me. Thanks.
The next year I entered but made little effort and finished middle of the pack. The winner was gifted two additional days of PTO.