every day for a week, run 1k faster than the day before
this is a straightforward running challenge (phew!)
the rules:
1. run 1k as fast as you can
2. every day for a week, run 1k faster than you did the day before
3. record your quickest time daily
every day for a week, run 1k faster than the day before
this is a straightforward running challenge (phew!)
the rules:
1. run 1k as fast as you can
2. every day for a week, run 1k faster than you did the day before
3. record your quickest time daily
