Canon 7d and 85mm 1.8 - blurry

I have a 7d and have used my Canon 70-200 f/2.8 for football and wrestling.  I have posted in the past.  Still frustrated with pictures that are soft.  I try and keep my shutter above 1/500 - 1/640 and shoot on f/2.8.  I recently purchased an 85mm 1.8 for wrestling hoping my pictures would be clearer but they don't seem to be.  I'm not sure what I'm doing wrong.  I also recently took pictures at a party indoors and shot automatic with my 7d, tamron 17-50 VC and noticed some pics were blurry.  My sister-in-law said my shutter needed to be higher.  I think my shutter was about 1/60 and she suggested it should have been about 1/125.  Here is a link to my SmugMug pictures where I posted different lenses and settings.  SmugMug Test Pictures

Canon 7d, 85mm 1.8, Shutter 1/640, ISO 3200, f/2

ISO 2500, shutter 1/640, f/2