Kammala wannan jumla: Tata-Muya ya sami lambar azurfa biyu daga Gasar Zakarun Afirka ta 1979 (m 400 da 800). Ita ma ta lashe lambar tagulla a tseren mita 400 a gasar zakarun Afirka ta 1982. A shekarar 1980 ta dauki wasu abubuwan da suka faru a
Wasannin Commonwealth, mafi kyawun sakamako shine matsayi na 7 tare da tawagar relay ta Kenya 4 × 400 m. Taronta na farko na duniya shine gasar cin kofin duniya ta farko a 1983, inda ba ta wuce mita 400 ba. Ita ce kawai 'yar wasan Kenya a Helsinki, kuma ta haka ne mace ta farko ta Kenya da ta yi gasa a gasar cin kofin duniya.