Rubuta ci gaba don wannan sakin layi - Sylvia ta sami nasararta mafi kyau a nesa na Half Marathon, inda ta lashe gasar zakarun kasa ta 2001. Ta kasance mai gudu a shekara ta 2000. Wadannan sakamakon sun sanya ta a cikin tawagar 'yan wasan Amurka a 2001 IAAF World Half Marathon Championships
Ka yi haƙuri. Ta ci gaba da cin nasarar Rabin Marathon a cikin Austin Half Marathon da America's Finest City Half Marathon. Ta kafa tarihinta na sirri na 2: 33:47 a Marathon a Marathon na Birnin New York a shekara ta 2002. Tare da na 2: 36: 38 a Los Angeles Marathon, wanda ya kawo ta zuwa lamba 4 a kan US martaba cewa shekara. Hakanan tana riƙe da rikodin hanya a 3M Half Marathon. 2003 New York Marathon 2:33.10 Na farko na Amurka 10th, 3M Rabin Marathon 2004 P.R. 1:09.51 Na farko gaba ɗaya