4 ms·
It may also be worthwhile to go to the track and practice a pace. After you run 100 laps at a certain speed, it's easier to find that speed again.
by llimllib 15y ago
It may also be worthwhile to go to the track and practice a pace. After you run 100 laps at a certain speed, it's easier to find that speed again.
- jasonshen 15y agoI use Runkeeper for my iPhone. There's this great belt you can buy that holsters it (Spibelt), can't even feel it there. Coaching on how fast you're going every half mile. You can calibrate pretty quickly.