Throughout the high school outdoor track & field season, MileSplit USA will feature a weekly series of articles highlighting the most improved times and marks across our network. These rankings will showcase improvements in various categories, such as year-over-year performance at specific meets, week-to-week progress, and overall month-to-month results. This exclusive content demonstrates the power of our data analysis and content creation tools. By tracking runners on the same courses and in similar competitive environments, we can clearly illustrate their growth and achievements.
To explore the Most Improved rankings for each state, simply select a state from the list below. By clicking on a state, you'll gain access to detailed rankings that showcase which athletes have made the most significant progress.
| BOYS | GIRLS |
| National | National |
| Alabama | Alabama |
| Arkansas | Arkansas |
| Colorado | Colorado |
| Florida | Florida |
| Georgia | Georgia |
| Indiana | Indiana |
| Illinois | Illinois |
| Kansas | Kansas |
| Kentucky | Kentucky |
| Louisiana | Louisiana |
| Maine (Idle) | Maine (Idle) |
| Mississippi | Mississippi |
| Missouri | Missouri |
| New Jersey | New Jersey |
| New Mexico | New Mexico |
| New York | New York |
| North Carolina | North Carolina |
| Ohio | Ohio |
| Oklahoma | Oklahoma |
| Pennsylvania | Pennsylvania |
| South Carolina | South Carolina |
| Tennessee | Tennessee |
| Texas | Texas |
| Virginia | Virginia |
| Wisconsin | Wisconsin |
| Wyoming | Wyoming |