![]() And based on tempo workouts and the Daniels’ Running Formula, I thought my maximum sustainable marathon effort would be in the high-150’s. In training I had not seen my HR exceed 175 bpm. The most surprising piece of data was my heart rate, which averaged 165 bpm and which peaked at 177 bpm. My slowest 5K split was through the Newton Hills, and fastest was the final full 5K from the top of Heartbreak Hill into downtown Boston. I ran a slightly negative split, which is probably rare at Boston on a hot day. You’re welcome to use it for your own purposes. To help orient myself and to help my family plan their spectating, I created the map below. It looks like the starting altitude was off by about 60 feet, but the profile should be the same otherwise. In an average mile, you gain 25 feet and lose 41 feet, so 16 feet net down.If you take the average of these, you get: GPX track from my Suunto Ambit: 600 feet of gain, 1064 feet of loss, 464 net down.GPSRunning: 693 feet of gain, 1095 feet of loss, 402 net down.: 544 feet of gain, 922 feet of loss, 378 net down.: 783 feet of gain, 1225 feet of loss, 442 net down.But I found multiple listings of vertical change: ![]() Multiple sources agree that the starting line is at 442 feet above sea level and the finish at 17 feet above sea level. It recorded a distance of 26.38 miles, which probably includes some wider corners than the official course. Boston Marathon course GPX fileĭuring the race I wore a Suunto Ambit GPS sport watch. It’s mostly for my purposes, so I can quickly access and compare the information in the future but there are a few resources that will be useful for any Boston participant. My Boston Marathon coverage finishes with a data dump.
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