Tanigawa waxay sidoo kale ka qayb gashay tartamada marathon-ka nuska ah: waxay ku guuleysatay billado lacag ah shaqsi ahaan iyo koox ahaan 1993 IAAF World Half Marathon Championships
wuxuu ku guuleystay orodka nus maraatoonka ee Sapporo 1994 iyo orodka nus maraatoonka ee America's Finest City 1996. Waxay ahayd abaalmarinta dahabka ee kooxda ee IAAF World Half Marathon Championships 1994, halkaas oo ay ku dhammaysatay kaalinta tobnaad.