User blog comment:Njalm2/Fanon Canon - Grimmjow's Espada!/@comment-4509522-20150116033246/@comment-6003865-20150116140722

to be fair, only five of the espada were defeated by the 13 captains themselves, 2,3,4,6, and 9 were defeated by someone other than the captains. with 2 losing to the visored, 3 to aizen, 4 and 6 to ichigo, and 9 lost to a seated officer. that last one is really embarassing.