My last 4 races in college went as follows(Most recent to least recent):
1:49.93
1:49.92
1:49.08
1:50.50
After not qualifying for nationals, I immediately stopped running. If I were to race an 800 once a month with no other training (I will be doing things like labor-intensive yard work, pickup basketball, etc), how long will it be until I can no longer break 2:00 in the 800?