 Ramba uchiverenga ndima ino - Walker akakwikwidza muParalympics kekutanga mumitambo ya2000, muSydney. Muzvose akaenda kumba nemenduru nhatu kubva kumitambo iyi, bronze mu100 m breaststroke SB7, sirivha mu50 m freestyle S7 uye goridhe mu4 × 100 m freestyle 34 pts. Sechikamu chechikwata chakakunda menduru yegoridhe, iyo yaisanganisirawo Jody Cundy, Giles Long naDavid Roberts, akaisa nguva itsva yepasi rose ye4:06.85. 