At the 2023 US Open Wheelchair girls' doubles competition, Czauz played alongside Yuma Takamuro from Japan, and together they were runner ups, losing to Ksénia Chasteau from France and Maylee Phelps from the United States by 7–5, 6–0 at the final.[2]
In January 2025, Czauz played in the inaugural Australian Open junior wheelchair tennis competition in both the singles and doubles draws. She got to be runner up in doubles partnering with Ailina Mosko from Latvia and losing to Belgian player Luna Gryp and Brazilian Vitória Miranda in the final, by a score of 6-1, 6-1.[3]
Czauz was also runner up in the singles draw. Once again facing Vitória Miranda in the final, she was defeated 0-6, 6-3, 7-6(4).[4][5]
In May, Czauz was part of the United States junior team at the BNP Paribas World Team Cup, held at the Ali Bey Club in Manavgat, Antalya, Turkey.[6] The team, which also included Max Wong and Lucy Heald, went undefeated in the round-robin stage and defeated Brazil 2–0 in the semifinals.[6] In the final, the United States lost to Great Britain 2–0 and won the silver medal.[6] Sabina Czauz played a singles match against British Lucas John de Gouveia at the Gold Medal Match and lost 6–0, 6–3.[6]
At the 2025 French Open, Czauz was once again a junior Grand Slam finalist in both singles and doubles. In the singles final she once again faced Vitória Miranda and was runner up, losing 3-6, 2-6.[7]
At the doubles final she played alongside Emma Gjerseth from Sweden and faced Vitória Miranda that was partnering with Belgian player Luna Gryp one more time. She was once again a runner up with a score of 3-6, 2-6.[8][7]
United States