+1 to Dave!
In my case, I am a level 56 player - who got made up to master tier this morning. My average is 73.5.
Looking at your stats, I find your "hybrid" stats interesting, and I don't mean to put your personal choices into doubt but try to get my head around WGT's calculus:
Through a bit more than a month, you've played 12 ranked rounds, not enough in any tier for a traditional promotion and none as a hack.
Thus, I consider you on the track of a "mobile" tiering career, yet with an average.
Have fun on the tracks!