Mezue ahịrịokwu na-esonụ:
2006 IAAF World Cross Country Championships na Fukuoka, ebe ọ nọ na 49th n'ọsọ ogologo ụmụ nwoke. N'afọ 2007, ọ bụ onye nke abụọ karịa mita 10,000 na Japanese Athletics Championship wee hara ka Japanese kọleji ndekọ karịa 5000 m na KBC Night of Athletics (na-agba ọsọ oge nke 13:19.00 nkeji). Ọ gbara onye nke iri na abụọ n'ọsọ mita 10,000 na 2007 World Championships. Takezawa bụ onye na-agba ọsọ na 5000 m na 2008 Japanese mba na a họọrọ maka Japanese Olympic otu: ọ gbara ọsọ na nke mbụ nke 5000 m na okokụre iri abụọ na asatọ na 10,000 m na ndị ikom 10,000 mita.