Pedzisa mutsara unotevera: Yashima akagamuchira menduru yake yekutanga yepasi rose pa1994 World Junior Championships muAthletics, kwaakaisa wechitatu mumamita 1500 evakadzi achitevera Anita Weyermann naMarta Domínguez. Akapinda mumakwikwi makuru gore rakatevera uye akatungamira timu yeJapan kukunda mu1995 Asian Cross Country Championships, naYashima nevamwe vake vechikwata Michiko Shimizu naYasuko Kimura vachipukuta podium pachiitiko ichi kumba turf kuChiba. Kuita uku kwakamuita kuti asarudzwe nokuda kwe
1995 IAAF World Cross Country Championships, uko akapedza 69th zvachose.