Kammala jumla mai zuwa: Liu ta shiga gasar zakarun Amurka ta 2020 a matsayin wacce aka fi so don kare taken ta. Ta kasance ta biyu a cikin gajeren shirin bayan ta fita daga yunƙurin Axel sau uku, amma ta sami nasarar sauka sau uku da sau uku Lutz-hujja uku, da kuma aiwatar da matakin-4 da ƙafafun kafa. Ta sami maki 75.40, sama da maki 3.50 a bayan Bradie Tennell; ta kuma sami fa'idar ƙimar fasaha fiye da maki 16 a kan Tennell da Bell. Gudun karshe kuma nan da nan bayan Mariah Bell ta "mai ladabi, kusan cikakkiyar wasan kwaikwayon" zuwa k.d. lang ta sigar waƙar Leonard Cohen "Hallelujah", Liu ta lashe kyautar kyauta ta fiye da maki takwas, tare da ci 160.12, wanda shine mafi kyawun aikinta, da kuma maki 235.52 gaba ɗaya. Sakamakonta na ƙarshe ya fi maki 10 sama da na Bell, wanda ya zo a matsayi na biyu, kuma ƙasa da maki 15 a kan Tennell, wanda ya zo na uku. Kodayake ta kasa zama mace ta farko a Wasannin Kasa na Amurka da ta yi nasarar kammala Lutz sau hudu, wanda aka kira a karkashin juyawa kuma ya sami mummunan darajar aiwatar da ƙimar, ta "triple Axels sun kasance masu ƙarfi, kuma juyawa biyu na ƙarshe sun fi inganci". Ta sauka sau biyu sau uku a cikin dakika 65 na farko na shirinta, sannan ta kammala ƙarin tsalle sau uku. Liu ya gaya wa manema labarai bayan haka, "A wannan shekara ina tunanin, sabon shekaru goma ne, kamar, wow, menene kyakkyawan farawa!" A lokacin da take da shekaru 14, nasarar Liu ta sanya ta zama mafi ƙanƙanta a matsayin zakarun mata na Amurka sau biyu kuma mace ta farko a cikin shekaru bakwai da ta lashe gasar zakarun Amurka a baya, tun lokacin da Ashley Wagner a 2012 da 2013 kuma tun lokacin da Michelle Kwan ta lashe 8 sakamakon sakamakon. Bell da Tennell sun taimaka wa Liu zuwa saman matakin dandalin yayin bikin bayar da kyaututtuka, suna sake yin abin da suka yi a shekarar da ta gabata. Liu ya kasance ba shi da shekaru don yin gasa a manyan gasa na kasa da kasa, amma an kira shi zuwa
2020 Gasar Zakarun Duniya ta Duniya, tare da Starr Andrews da Lindsay Thorngren.