Okay...I'll actually help. At my Ivy, here's how it works. I've got some time on my hands, so this will be pretty detailed:
Step #1 - Finding fast athletes.
1a) Massive mail-outs
The coaches and people who work in the track office collect results all year. They look through hundreds of meets and input everyone who hits certain time standards into a database. Letters are sent to every single person who meets those time standards along with a little card for the person to fill out with her grades, scores, etc. People who are interested in the school send back those cards, and those who look promising (which is a function of being fast and smart) are collected and held onto.
1b) Kids contacting the coaches
A lot of fast and smart people are missed on the massive mail-outs. So, a great number of the people who actually wind up attending the school contact the coaches through e-mail or phone and tell them how fast and smart they are. Promising athletes are remembered and coaches maintain communication.
Step #2 - Recruiting, pre-visit
The coaches then take the stack of promising athletes who they have collected via the massive mailouts and through the kid-initiated communication and call those kids. Coaches also call kids they think are particularly fast, even if they haven't sent back a card. Coaches pitch the school, learn more about the kid as a student and an athlete, and then will decide whether they want to invite the kid to the school for a visit. By this point in the process the coaches will know exactly who the people they are talking to are, exactly how fast they are, and exactly what their transcripts and scores are like.
Step #3 - Recruiting, the visit and calculating the "Academic Number"
If a coach invites an athlete on a visit, there's a very good chance the coach would like that athlete to attend the school. Coaches at my ivy need their recruiting classes to average a certain "Academic Number" which is calculated based on a kid's scores and transcript. A coach will ask an athlete to bring a copy of her transcript to the visit and the coach will then bring that transcript to the admissions office (along with the test scores) and the admissions office will assign that athlete an academic number (I'm not sure if this number fluctuates with other variables like minority status...it very well might). A team's recruiting class must average a certain number assigned to that sport. For XC/track the number tends to be relatively high, at the other end, Men's Hockey and Basketball are relatively low.
The bottom line is this: If the admissions office tells the coaches that they can have ~20 women receive admissions help, then the coaches will want to get ~20 women whose academic numbers average whatever the admissions office tells the coaches they have to average. What winds up happening is that the coaches will take some slower/smarter kids, and some faster/dumber kids, to make the academic number average out and get the team some really star athletes. Smart and fast is always the best combination, but you can still get in being really smart and a 9:40/4:25 guy, the same as you can get in being a 4:12 miler with 1750 SAT scores.
At the end of each kids visit, the coach will tell the kid what his or her chances of coming to the school are - normally really good if the coach has you come on the visit. Sometimes, our school will have to call a kid after the visit and tell him or her that it's best to look elsewhere since things aren't looking good...but that's normally not the case.
Kid's will then commit to attend the school, and the coaches will have to make sure that the kids committing are averaging the team's academic number. Sometimes, the coaches will have to give up dumb kids if they make the average fall too low.
So there you have it, the process from where you are now, to where things will wind up if you decide to attend an Ivy. For a sophomore girl, you're on the right track in terms of times. You could definitely get recruited off of these times alone. If you drop a some more time over the next couple of years, you could find yourself in the category of people who are fast enough to afford being on the not-as-smart side.
Good luck.