I'm able to run half of this loop and am working on at least 3/4. There are a lot of steep switchbacks that are difficult to just keep moving at a good pace let alone run...at least for me. It's a fun run with lots of changing trail types.
Begin by taking the trail as it heads out along with the Piestewa Peak Summit Trail #300
for about half a mile of good running. When you get to the second bench, continue straight to stay on #302; the Summit Trail continues to the right. Switchback all the way down then head north on a decent trail that is more manageable at least until you get to the northeast section which gets steep with some switchbacks leading to the high point of the north side. The top part of the north trail goes through one part of the mountains. Next, the trail heads along the middle of the mountains as you work your way down the first part. The trail switchbacks all the way down to the east side, eventually merging with #304 until the south side trail loops you back to the beginning.