Heart rate, hills, and other stuff

I'm officially done with my 5K racing season and have moved into base building for my fall marathon. I ran four 5Ks this spring/summer and their purpose was mainly to get my running heart rate back to "normal" after Covid had made it abnormally high for months.

Heart Rate
My resting heart rate was elevated for about 2-3 months post Covid, and my running heart rate was elevated for about 5 months. I got sick in the middle of January and recovered at the end of January. From January-May, my running ...