Do the Math

I should be able to do this. I was reading an article in Runner's World and it recommended running a long run at 10% above marathon pace. So I tried to figure out what that would be if my marathon pace is 12:36. Using their example, you figure out how many seconds are in the number of minutes (they conveniently used a whole number less than 10), multiply that by 10%, then add that to the original number of seconds, then convert that back to minutes and you have your long run pace.

RW:
MP=8 minutes per mile
8 minutes = 480 seconds
480 seconds*10%=48
480+48=928 seconds per mile or 8:48

OK, their math didn't add up, and it messed me up when I was trying to figure out their formula. 480+48=528, which divided by 60 seconds = 8:48.

ME:
MP=12:36
12:36=756 (60 seconds * 12 minutes=720, plus 36 seconds=756)
756 seconds*10%=76 (I rounded up)
756 + 76=832 seconds
832 seconds/60 seconds=13:52

That seems awfully slow, for just a 10% increase. Of course, it doesn't seem slow when I'm trying to run in snow and ice and wind and cold! My husband isn't here to show me the flaw in my reasoning, but it just doesn't seem right. Maybe it is.

This is what I get for having a liberal arts education.

You Passed 8th Grade Math

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