Not sure if anyone has ever posted this before but a few months ago I saw a video of a closer named Donnaguska on youtube and finally found it again(i had forgotten the horses name). Watch the video below and you will be totally awed by this close lol.
The amazing part also is the jockey had to check pretty hard halfway down the stretch and thread his way through horses. I have been doing horse racing for over 2 decades and have watched well over 100 thousand races and have never ever seen anything like that before. The only one that is possibly close would be Hitchhiker the harness horse.