Kammala wannan jumla: Fuentes ya koma Giants a 1969 kuma ya shafe shekaru biyu masu zuwa a matsayin mai amfani da kayan aiki kafin ya sake samun wuri na farko a karo na biyu a 1971. Ya bayyana a cikin postseason a lokacin 1971 kakar kamar yadda ya Giants lashe NL West lakabi; ya biyu gudu gida gudu a Game 1 na
1971 NLCS ya taimaka wa San Francisco ya jagoranci jerin farko a kan Pittsburgh Pirates, amma wannan zai zama nasarar Giants kawai a cikin jerin mafi kyau na biyar. Fuentes ya ci gaba da kasancewa dan wasan na biyu na Giants har tsawon shekaru uku. A shekara ta 1973, ya kafa rikodin National League ta hanyar yin rikodin kashi.993, mafi girma ga kowane dan wasa na biyu na yau da kullum a tarihin gasar. Abin mamaki, Fuentes ya jagoranci dukkan 'yan wasan na biyu na National League a cikin kurakurai a cikin shekaru biyu da suka gabata kafin kafa sabon rikodin don ƙwarewa. Rikodin sa ya tsaya har tsawon yanayi 13 kafin Ryne Sandberg ya yi rikodin kashi.994 a karo na biyu a 1986.