Tulis terus kanggo paragraf iki - Zeferino uga rampung ing 1998, 1999 lan 2003 IAAF World Half Marathon Championships
Finishing 117th, 91st and 70th respectively and also completed in the 1999 and the 2000 IAAF World Cross Country Championships <unk> Balapan senior pria ing ngendi dheweke rampung ing urutan 141 lan 145.