MileSplit will release the top 25 individual national rankings for high school girls and boys every two weeks throughout the fall season as part of our annual Flo50. Follow along with this series as we countdown the season with pre-season national rankings every day until the first full release on Friday, September 1!
| Flo50 Rankings Timetable | |||
| Aug. 11 | 25 | Aug. 12 | |
| Aug. 11 | 24 | Aug. 13 | |
| Aug. 11 | 23 | Aug. 14 | |
| Aug. 11 | 22 | Aug. 15 | |
| Aug. 11 | 21 | Aug. 16 | |
| Aug. 17 | Aug. 22 | ||
| Aug. 18 | Aug. 23 | ||
| Aug. 19 | Aug. 24 | ||
| Aug. 20 | Aug. 25 | ||
| Aug. 21 | Aug. 26 | ||
| Aug. 27 | Sept. 1 | Final Rankings | |
| Aug. 28 | |||
| Aug. 29 | |||
| Aug. 30 | |||
| Aug. 31 | |||
Pictured: The start of the girls championship at NXN in 2016 at the Glendoveer Course in Portland, Oregon