Up until 6th grade I was a weakling. Then in 7th and 8th I started running. I did track and cross country, and in 8th grade even played football.
My school has a "jog-a-thon" fundrasier every year (you get sponsors and run, and earn money based on how many laps you run in an hour). Well, I broke the school's record for most laps done

. It used to be 34 in one hour, I did 40. (400 meter laps, a fourth of a mile)
My mile time is 5:39.
For football, I played on the line even though I weigh 120 lbs, against guys that weighed 160+. It was really fun, they hated hitting me because I'm so bony and it hurt

.
Next year (going to highschool) I probably have to drop football because I'll be too small (unless I work out during the summer, then I have a chance). And I definetly intend to run track and cross country all four years.
Well thats my brief sport's history, cause you asked