Lorraine Martins gained her first experience in international championships in 2016 at the U18 South American Championships in Concordia , where she won the gold medal in the 100 meter run in 11.78 s and bronze in the 200 meters in 24.98 s. The following year she won the U20 South American Championships in Leonora in 11.56 s and 23.89 s over 100 and 200 meters and finished fourth in the Brazilian 4 x 100 meter relay in 47.63 s . She then took part in the U18 World Championships in Nairobi , where she finished fourth over 100 meters in 11.80 s and fourth over 200 meters in 23.89 s. In 2018 she qualified for the U20 World Championships in Tampere, Finland , where she was sixth in the 100 meters in 11.48 s and seventh in the 200-meter run in 23.91 s . At the IAAF World Relays 2019 in Yokohama , she finished fourth in the 4 x 100 meter relay in 43.75 seconds. She then won the U20 South American Championships in Cali in 11.42 seconds over 100 meters, in 23.53 seconds over 200 meters and in 3: 37.24 minutes in the 4 x 400 meter relay. In addition, she won the silver medal in the 4 x 100 meter relay in 46.11 seconds. She then won the bronze medal at the Pan American U20 Championships in San José in 23.06 s and reached fourth place over 100 meters in 11.55 s. In August she took part in the Pan American Games in Lima for the first time and was eliminated there with 23.74 s in the lead. In addition, she won the season in 43.04 s. End of September she took the 200 meters at the world championships in Doha in part and retired there with 23.56 s in advance of. In addition, she was disqualified with the relay in the run-up.
In 2019, Martins became the Brazilian champion in the 200-meter run.
Personal bests
100 meters: 11.35 s (+0.1 m / s), July 14, 2019 in Segovia
200 meters: 23.06 s (+1.4 m / s), July 20, 2019 in San José