Nyorera kuenderera kweiyi ndima - Musi waChikumi 1, 2015, Walcott akatengeswa kubva kuNew York Rangers kuenda kuTampa Bay Lightning mukutsinhana nesarudzo yechinomwe yekutora mu2015 NHL Entry Draft
, iyo yakatanga kutumirwa kuTampa Bay mukutengeserana naMartin St. Louis mwaka wapfuura. Walcott akanga achangopedza mwaka wake wechipiri muQuebec Major Junior Hockey League neBlainville-Boisbriand Armada. Walcott akanga ane zvinangwa zvinomwe uye 41 mapoinzi mumitambo 54 yemwaka wenguva dzose. Iye akaonekwawo mune imwe American Hockey League mutambo neHartford Wolf Pack mushure mekusaina chibvumirano cheamateur tryout.