If you remember this post, I called for volunteers to help me with a project involving referees and judges.  I've put the judge project on hold for now, but we're still going strong on the ref side.  Here's some preliminary work I've done, and hope to expand on with more data:

Sorry for the poor image quality.  I'll try and fix that.  Anyway, there isn't too much to glean from these yet because of the sample size, but it's interesting that Mario Yamasaki's nickname "Finish Him" may be well deserved.

I'm still looking for people to help out with the project.  Originally, I wanted people to have access to all fights on a card, but I'm content with any help at this point.  All you have to do is go through each fight on a card, note the referee, and report it back to me.  Shouldn't take more than five to ten minutes for each event.  Here's what we're missing:

All Fight Nights
All TUF Finales
UFC 28
UFC 36-37
UFC 38-42
UFC 61-68
UFC 93-94

A lot of prelims fights haven't been accounted for either.  Send me an e-mail if you're interested.

EDIT: I've added a Google spreadsheet of unfinished fights.  Please continue to send data to my e-mail.  Spreadsheet should be updated fairly reguarly this week.  Keep in mind 48-60 are done, I just haven't received them yet.

Google Spreadsheet