[iambateman]

When I started running, I didn't have the discipline to keep pace. So my splits were like 9...9:30...10:15...10:30.

But developing discipline to know your own body and abilities might just be the most important part of training. Hopefully this helps you be more aware, not less.

(FWIW, after 8 months of training, I've learned to run miles within 10 seconds of each other, without a metronome.)

[ollysb]

Just curious, could you run with this accuracy on any route or only on your regular run?

[iambateman]

Last week I got 8:12, 8:16, 8:20 on a circle route with no traffic. On a less-known route I imagine the variance would go up, but not because of starting too hard out of the gate.