Junior Season
Isaiah appeared in twenty-two games and earned twelve starting assignments at Florida Tech. Isaiah totaled 142 points, 42 rebounds, 15 steals, and 40 assists throughout the season. Isaiah's best offensive performance came against Saint Leo on March 1, when he exploded for a career-high twenty-four points. Isaiah's ability to contribute across multiple statistical categories and his consistent presence in the starting lineup made him a valuable asset for the Panthers. Isaiah was also named to the SSC Spring Honor Roll, demonstrating his commitment to excellence both on the court and in the classroom.
Sophomore Season
Isaiah appeared in thirty games and earned thirty starting assignments at Southern Union State Community College. Isaiah averaged 10.7 points, 2.2 rebounds, and 4.4 assists per game while logging 5.9 minutes per contest. Isaiah shot 45.5 percent from the field, connecting on ninety-five of 209 attempts, and converted twenty-three of fifty-seven three-point attempts for 40.4 percent. At the free-throw line, Isaiah demonstrated exceptional touch by making 107 of 118 attempts for 90.7 percent, ranking second in the NJCAA Division I. Isaiah's best offensive performance came against Wallace State on February 25, when he erupted for twenty-two points on six-of-nine shooting from the field, one-of-two from three-point range, and nine-of-ten from the free-throw line. Isaiah also recorded twenty points against Enterprise State on January 14, shooting a perfect ten-of-ten from the charity stripe. Throughout the season, Isaiah pulled down sixty-seven total rebounds, including eight offensive boards, and distributed 132 assists while recording thirty-four steals. Isaiah maintained an impressive assist-to-turnover ratio of 3.3, ranking thirty-first in Division I. Isaiah's ability to facilitate the offense, score efficiently, and take care of the basketball established him as one of the premier guards at the junior college level.
Freshman Season
Isaiah appeared in twenty-eight games and earned twelve starting assignments at Southern Union State Community College. Isaiah averaged 5.9 points, 1.1 rebounds, and 2.0 assists per game while logging 7.1 minutes per contest. Isaiah shot 35.3 percent from the field, connecting on forty-nine of 139 attempts, and converted twenty-one of forty-eight three-point attempts for 43.8 percent. At the free-throw line, Isaiah made forty-seven of fifty-eight attempts for 81.0 percent. Isaiah's best offensive performance came against Central Georgia Technical College on December 8, when he erupted for nineteen points on five-of-eight shooting from the field, three-of-four from three-point range, and six-of-six from the free-throw line while also dishing out three assists. Isaiah also recorded fourteen points against Northwest Florida State on November 28 and fourteen points against Eastern Florida State on December 30. Throughout the season, Isaiah pulled down thirty-one total rebounds, including ten offensive boards, and distributed fifty-five assists while recording twenty-two steals. Isaiah maintained an assist-to-turnover ratio of 1.1, demonstrating solid decision-making for a first-year player. Isaiah's ability to knock down three-pointers at a high rate and contribute as both a scorer and facilitator provided valuable depth to the Bisons' backcourt.
High School
Isaiah graduated from Cardinal Gibbons High School in Fort Lauderdale, Florida. Isaiah played eight years for Florida Vipers: Team Breakdown in Florida before continuing his basketball career at the collegiate level.