My Hero

@farmstros beat me to the punch on this, but I've got a little different take. Here are the Astros minor league system save leaders for the entire season through 8/18.

18 - Kirk Clark (LAN)
13 - Jorge De Leon (LEX)
8 - Ryan Cole (TCV)
7 - Blake Ford (GCL)

Keep in mind that Cole and Ford are playing short season ball and have had far fewer opportunities.

Since milb.com doesn't post save opportunities or blown saves as a stat, I had to go into individual boxscores to determine the save rate. I think these are all correct but I won't guarantee it.

80% - Ryan Cole (TCV)
78.3% - Kirk Clark (LAN)
76.5% - Jorge De Leon (LEX)
70% - Blake Ford (GCL)