
funny topic...
I can only remember one guy that I hated his gutz out.
I can't remember his name for certain. It was a Sean or Shawn (Omitted, but I think I know it, lol) from Wisconsin. He wore one of them red plastic open faced helmets.
Novice class, he had narrowly beaten me a couple times one day. ...Then (it was a bigger indoor race, Cornhusker National???), I took it wire to wire in the Semi-finals. And after crossing the finish line I turned to say "good race" and he punched me square in the face (I had a full faced helmet on).
Then when I looked back again to see, who the, what the, ...he grabbed the face bar of my helmet and tried to pull me off my bike, saying something about taking "His" line in the last turn. ...Then a TO grabbed him. I don't think he saw the initial hit, but I remember hearing the crowd, and people making different "Ohhhh, Ahhhh", sounds, and all eyes looking at us.
Maybe the TO didn't see it, (everyone else did, lol) because he didn't get DQ'd. I think he won the mains that day, and I got second. Which made me hate his gutz worse, because he should have been DQ'd.....
I just decided to take the high road, and whoop him badly on the track from that point on.... I made sure the guy never got close enough to me to see anything but the name on my Uni after that, and he never did

.
I hated that guy. He became moto fill for me and I quit seeing him at races eventually.

But he was not friendly at all, just a big jerk wad, and he is the only one I remember ever hating to see at races, and racing in my class. Cuz I always just wanted to sock him in the mush....lol.
Oh, and I hated racing Shawn Sheely, he used to eject roofing nails, and sharpened Rondo bottle caps, out of his handlebar ends in turn one.

(I'm only kidding, Shawn's my bud... )
There were names that gave me anxiety on the moto sheets. But the only ones I disliked racing, were usually unknowns to me, and were proven to race dirty...nobody likes a hack. If you T-boned me in a corner to knock me out of the race, I hated racing you....