If you were on the waitlist for both 801 and 837 then it seems strange that you were subsequently removed from the waitlist for 837? Not sure I recall ever hearing about such an occurrence? (There have been a few posts about the waitlist being closed.) I would be inclined to call back and verifiy if I was ever on the w/l for 837, and if so, why was I removed? In July (16, a Friday BTW)I cleared 837 5 min. before the doors closed, having gotten the last Y-->C upgrade, with another ~ 10 or so folks waiting around for their upgrades. I think they bumped someone from C-->F to clear space in C for me, and possibly one other person?

Here's hoping you clear at check-in, or at least get a DM card. (I got a DM card for NRT-BKK when I checked in in BOS approx, ~ 23 hours prior to the departure of 837 from NRT. The "time added to the DM" was GMT, I think, but it did not have a date, so not sure how this figures into the prioritization. I think I must have been one of the first people added to the DM?)

Some days 837 is not full, it was less then 50% full in C on 7 Sep. Other days it is 100% full. I would imagine it might be full as you are traveling on a Friday, but this just a guess?