Martínez attended Hamilton Heights Christian Academy in Chattanooga, Tennessee, where she averaged 18.3 points, 14.3 rebounds and 5.9 blocks per game during her career.
She helped the program finish as the runner-up at the 2018 Geico High School Nationals Tournament and was named to the all-tournament team.
[1] Martínez began her college basketball career at West Virginia during the 2019–20 season.
Her 274 rebounds were the eighth-most in a single season in Arizona program history.
[15] On 19 June 2024, Martínez signed with the Flammes Carolo Basket of the Ligue Féminine de Basketball.
[16] Martínez made her international debut for the Dominican Republic at the 2018 FIBA Caribbean Women's Championship where she averaged 8.8 points and 5.3 rebounds per game.