Wondering what the worst records are against a single coach?  Or more broadly are there any coaches who you hate for legitimate reasons, not that they "poached" you or are a jerk on the threads.

I am 0-20 career against namshub.  Two years in a row he has knocked me from the NT.  In most years it made sense, but I feel like this season the HD gods just wanted to say "screw you cburton, you will never beat nams."

I have a horrendous career record against osgonlz, considering how solid my programs have typically been. I don't remember the exact record, but I think I'm something like 3-13 against him. This includes a stretch in Crum where I went 63-1 in conference play over four season. In those four season, I was 3-1 against os. I'm 0-10 (I think, I'd have to check to be sure) in all other Crum/Naismith/Rupp meetings. 

I think I lost nine straight against bhbum before I got my first win against him. I don't think I've played HD long enough to have 20 games against an individual coach, but those are the worst I can think of. The overall record is definitely not as bad, but I definitely know the feeling on the whole "look at this team I've built, seriously how am I not beating him?" level. 

I have 2 in conference that have had me for awhile. My record against one is 9-35 and the other is 17-53.

Can I count my longtime  rivalvy with the esteemed Coach Sim of Newberry College (Wooden)?  At one time, I was 60-0, then 90-1 vs. Newberry

At one point I was 0-11 against grecianfox, and had some pretty good teams in the process. I just could not beat him.

i refuse to comment on this out of fear of retribution by the sim gods.