In charting outcomes, there always a person or two who don't match after having ranked >11 or 12 interviews? Do you know why? Is this person ranking programs that he/she didn't interview at?
Almost always one of two things:
1) the couples match. If both want something competitive this can be brutal. I know that affected at least two in the last few years.
2) they don't interview well/they are just not fun to be around. We all went through med school and know the type: super smart people but you would hesitate to save them from a burning building because they are just not pleasant people. Personality does matter a lot and this tends to be a field of good people which is a real plus.
Is charting the outcomes of the match now available for this past application year?
There was some problem with USMLE/ERAS not releasing the step scores to NRMP, so they said there won't be a charting for last year. Which is unfortunate given how fast things change. Relying on data from 2011 is not very reliable anymore!