Agatha Chrystenzen Fernandez Wong was born on May 20, 1998, in Quezon City, Philippines,[2][failed verification] tracing her roots to Dagupan, Pangasinan.

[5] Wong studied at the College of Holy Spirit in Quezon City[6] and the De La Salle–College of Saint Benilde where she graduated with a Bachelor of Arts in Consular and Diplomatic Affairs.

[1] Wong won a bronze medal at the 2018 Asian Games held in Jakarta–Palembang despite the Wushu delegation experiencing financial issues which prevented her from training in China, as customarily done for high-profile competitions.

[5] She also sustained a grade 2 slipped disc injury prior to the games and has not yet fully recovered by the time she competed in the continental competition.

[11] At the 2018 Asian Traditional Wushu Championships in Nanjing, China, Wong clinched two medals for the Philippines by besting the Group B women's Taijijian and Group B women's Taijiquan events[12] Wong also competed at the 2017 and 2019 Southeast Asian Games; clinching the gold medal for the taijiquan event and silver for taijijian at the 2017 SEA Games in Kuala Lumpur, Malaysia,[13] and two gold medals for the taijiquan and taijijian events at the 2019 SEA Games in the Philippines.