Ingame testing revealed that the Attack Resolution Table on this wiki and in the ingame glossary is wrong. The correct values are:
Less than or equal to 24 = Miss 25-49 = Graze, 50-99 = Hit 100+ = Crit
I cant say for sure that having a result of 100 is a crit, but i had results of 24=miss, 25=graze, 50=hit. The logical conclusion is that 25 "sides"of the table are miss, 25 graze and 50 sides hit. Hence 100 should be a crit. -Philkingz