Not sure if there is a way to go back to previous "model runs" or not but I did take a couple screenshots before of the previous update for Maryland.
Peak Changed from April 29th to April 18th
Peak Deaths Per Day Increased From 53 deaths (April 28th) to 138 deaths (April 19th)
Total Deaths Increased from 1,766 deaths to 2,326 deaths
Pretty big increase for Maryland