The course is a constant up and down, twisting, turning confusing mess of fabulous single-track with brief stints of wide trail. There are enough rock and roots to make it interesting but overall I’d say it’s one of the less technical courses in the series. But that doesn’t make it any less fun. On the contrary, the terrain is constantly changing, up one minute, down the next. Pine needles cushioning your feet at one moment give way to rocks or slippery roots aiming to give you a harsh wakeup call if you fail to notice the change in a timely fashion.
I wanted to run hard at Groton so I took off at fast pace (for me) down a flat road of crushed-stone in hot pursuit of my fellow dirt dogs. I was wearing my Inov8 320s and they didn’t offer much protection from the stones under foot. After crossing over two sets of railroad tracks and fields of tall grass and weeds, the single track running began. My feet were thankful for the change. Once onto the trail I made a decision to run as hard as I could for as long as I could, and to RUN all the hills. I also said to myself, “Do not get passed.” That worked for 9.3 miles. Unfortunately, the race was 9.5 miles and two heavy breathing, loud snorting, fleet- footed psychos blew by me in the home stretch.
Typical Groton (Coolrunning.com)