Sydney Sy Tancontian

Judo

Tancontian competed at the 2017 SEA Games, where she won a bronze medal in the 78 kg category. She also represented the UST Growling Tigresses in judo at the University Athletic Association of the Philippines (UAAP), in which she won the gold medal in the +78 kg category and was awarded Rookie of the Year in Seasons 82.

Sambo

At the 2018 World Sambo Championships held in Bucharest, Romania, Tancontian won a silver medal in the +80 kg division, becoming the first Filipino woman to do so. She then competed at the 2020 World Sambo Championships in +80 kg division, where she won a bronze metal once again. Tancontian competed in the 2022 Asian Sambo Championships held in Jounieh, where she won her first gold medal at the championships. She then competed at the 2023 World Sambo Championships in +80 kg division, where she won her third bronze metal at the championships.

In June 2024, Tancontian returned to the Asian and Oceanian Championships in Macau, where she won a silver medal. At the 2024 World Beach Sambo Championships held in Casablanca, Morocco, she won a bronze medal in the +72 kg event. In April 2025, at Asian and Oceanian Championships held in Tashkent, Tancontian won her second gold medal at the championships. The following month, she reached no. 1 in the FIAS world rankings. At the 2026 Asian and Oceanian Championships held in Manila, Philippines, she competed in the +80 kg category and won the silver medal.

Kurash

Tancontian competed in kurash at the 2019 SEA Games in the Philippines, in which she won a bronze medal in the +70 kg category. She returned to the SEA Games in the 2021 edition, where she won the silver medal, this time in the 87 kg category.