Moorhouse wuxuu noqday xidiga ugu wanaagsan ee dabaasha ee Britain 1981 markii uu ku guuleystay bilada naxaasta ah 200 m tartanka Yurub ee Yugoslavia. Sannadkii xigay wuxuu helay dahabkiisii ugu horreeyay ka dib markii uu ku guuleystay orodka 100 m ee laabta ee Ciyaaraha Barwaaqo-sooranka ee Australia, oo ah rikoor cusub oo Ingiriis ah oo ah 1:02.93, oo ay weheliso naxaas ah 200m laabta. Horyaalkii Adduunka ee Guayaquil wax yar ka dib, wuxuu ka maqnaa naxaas kaliya 2/100th ee ilbiriqsi ah 100m oo laabta ah oo ka dambeeya (Mustaqbalka) Ciyaartoyda Olombikada ee 1984 Steve Lundquist (USA) iyo Victor Davis (CAN), iyo rikoodhka adduunka ee mustaqbalka John Moffet (USA). Sanadkii xigay ayuu dib ugu soo laabtay guulihii isagoo dahab ku qaatay 200m oo laabta ah 1983 European Championships
wuxuu ku guuleystay billad dahab ah orodka 100m ee Rome.