During Still's true freshman season in 2020, he played in and started all four games at cornerback and finished the season with 18 solo tackles, two assisted tackles and 20 total tackles. During the 2021 season, he played in and started all 13 games at cornerback and finished the season with 40 solo tackles, 15 assisted tackles, 55 total tackles, three tackles for loss for 13 yards, two sacks, 11 pass breakups, two fumble recoveries and a touchdown. In the
2021 Pinstripe Bowl, Still returned a punt from
Virginia Tech for a touchdown, which was Maryland's first points of the game. During the 2022 season, he appeared in 12 games and started 10 of them. He finished the season with 35 solo tackles, 10 assisted tackles, 45 total tackles, four tackles for loss for 22 yards, an interception and one pass breakup. He was also named on the Paul Hornung Award Watch List. In the 2023 season he had 32 solo tackles, 2 pass deflections, and 5 interceptions. The interceptions were a career high for Still. On December 4, Still declared for the
2024 NFL draft. ==Professional career==