I play Softball. And before I played I watched my older sister play every weekend and at camps and ect. As I was at the camps i learned that when you sprint you suppose to run on your toes and have a good fast pase kick. Run the bases on your toes, not heel to toe or flat footed; KICK as you stride forward. Also the more you use your arms and the harder you pump them the faster you will go.
Like I said before i play softball but couldnt play this past summer because of and injury and this coming spring I play high school ball so I have started training. I train doing alot of different things. I run everyday of the week except Saturday and Sunday, sometimes twice a day, I usually do sprints and long distance (one in morning one in night) one day, then distancethe next day, then accually running bases timed and running around the out side of the field timed a day, I do hills a day, and then sprints or distance. Alot fo people dont think doing hills or long distance will help in in running 60 ft. from base to base on a softball field but it does!!
You dont have to run twice a day i just do, because i LOVE LOVE LOVE to run!!