I'm no young girl but their bodies behave quite differently than boys with that kind of mileage. She will probably need to eat more, especially red meat so she gets enough iron. Also, her period may begin to fluctuate. I doubt you'd be comfortable talking to her about her period so you might want an older female with aerobic experience to keep an eye on her over the winter.
Ill let her know that if she isnt feeling well to say something
I'm just a lurker, but that 2:24/12:16 girl def. need more aerobic work. I'm a high school senior, and I've run 12:35 without ever breaking 2:40 (yes, i know i'm slow)
do you lack sprinting speed all together? b/c you should still be able to easily break 2:40 with your aerobic capacity. Youre two-mile time isnt bad, with a little improvement, depending on how competitive your area is you could advance out of sectionals
To update... she ran 11:22 and 2:18 this spring.
hey i just want to say that make sure you tell her to watch her diet and increase calories as she increases her mileage. I was an elite h.s. female runner who made the mistake of running 50 + MPW after a great track season... but i didn't increase my food intake, lost too much weight, got sick and weak, and had to take some time off running. So Just be careful and make sure her diet is in order and provides her enough fuel for the engine...
Thanks for the advice. If everything goes well this summer I'm hoping she tops out in mileage in the mid-50's. I will make sure she understands to eat enough. Ultimately, my eye for her is long-term, giving her a chance to either improve enough to be one of the top CC runners, and perhaps break 11 in the 2-mile. Or just keep her fit and healthy enough to walk-on at a good university who can then help her improve as she has not run as much mileage as many competitors.