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So today I decided to run on the treadmill, I tried to do a tempo run but didn't feel the pace at speed 12, which is equivelant to a 5min mile, so I decided to up it to speed 15(15mph), which is a 4min mile and I still felt quite comfortable. Decided to up it to speed 17 which is around 3:40min mile, and I decided to see whether I could do 2 miles of this, and I did! 7:20 for 2 miles on a treadmill compared to a 18:40 5k on the road
I know the treadmill is easier but is it supposed to be 'this' much easier?