I'm at it again.....researching ways to keep running, running better and faster with no injuries.....for a late life runner, not always easy to do. Jeff Galloway has updated his recommended intervals for run/walk. His research shows that if you follow his plan you will be able to run a half marathon faster than if you run continuously, plus you won't have the higher risk of injuries. I had moved from 5/1, 4/1, 3/1, and then recently to 2/1 intervals. Today after reading I moved again, to 90 seconds of running to 30 seconds of walking. It seems like each time I decrease the running time I am faster. I think 90/30 is the appropriate one for my estimated "Magic Mile" pace of about 10:45.
...and again, it seems I was faster with the same effort. However, the humidity was down this morning so I am sure that helped.