First one for me was SIN-BKK on LX from Y to C. This was right after hitting 1P for the first time, and I'd only flown in F once before up to that time on ORD-MCO, so I got to see what proper flying was.

I did very well that same year as a 1P with an op-up from C-F on NH and Y-C on NGO-SFO. Since becoming 1k the only opup I've gotten was on SIN-HKG on UA.