So I guess I got confused when I first started. I thought I was told it was only 5 matches, but I guess it is 10 since I was doing core. I have already started a sharpshooter thread with 4 games on it the first of which was hardcore and the rest core. I guess can those count towards my marksman instead since my 2 weeks ends tomorrow? I had more than a few games where I went better than 15/10 but I stopped writing them down when I thought I was done with my marksman.