I live in Illinois. Not all of our delegates are awarded proportionally. During the primary, we’ll elect 54 delegates, by congressional district. The other 15 will be elected, statewide, during the Illinois Republican Convention, in May.
Are the districts WTA? Some states do sort of a proportional thing where if two candidates get more than 20% but less than 50% they are split 2 and 1.
The site I’m looking at just says proportional, but no details.
http://www.uspresidentialelectionnews.com/2016-presidential-primary-schedule-calendar/