Well, I do keep track of who refs which matches, but sometimes I don't hear or understand the names. When I don't know the names, I usually just kind of number the refs in my notes, indicating that, for example, my ref #1 was on matches 2, 5, and 8 of those I tracked.
That long-haired ref for last week's Shaw/SVB match, in which the breaks of 22 of 28 racks were dry (including 2 also fouled), was Greg Croudis from New Zealand. He is refing again this week at the event in Indonesia, including the FSR/Filler semifinal match being played right now.