Yesterday john ran 4 miles.
b. for every 100 runners who average 5 miles / day, 39 will suffer a stress injury that keeps them from running for at least 8 weeks.
c. more mothers buy salty shell peanut butter.
d. 327 of 536 runners finished the marathon last weekend and they averaged 4 hours and 29 minutes to completion.
e. last year, john ran an average of 2 one half miles / day.