▁class ▁of ▁ 2 0 1 3 . ▁On ▁August ▁ 1 , ▁ 2 0 1 1 , ▁Wal ton ▁announced ▁his ▁non - binding ▁ver bal ▁commit ment ▁to ▁Michigan . ▁At ▁the ▁time , ▁he ▁was ▁ranked ▁ 7 7 th , ▁ 8 8 th ▁and ▁ 9 2 nd ▁in ▁the ▁class ▁of ▁ 2 0 1 3 , ▁according ▁to ▁Sc out . com , ▁Riv als . com ▁and ▁ESP N . com , ▁respectively . ▁This ▁commit ment ▁came ▁one ▁day ▁after ▁Zak ▁Ir vin ▁joined ▁Michigan ' s ▁ 2 0 1 3 ▁rec ruit ing ▁class . ▁As ▁a ▁junior , ▁he ▁had ▁a ▁break out ▁season ▁that ▁included ▁posting ▁ 4 7 ▁points ▁and ▁ 1 2 ▁reb ounds ▁against ▁Cro ck ett ▁High ▁School ▁on ▁March ▁ 9 , ▁ 2 0 1 2 , ▁and ▁a ▁quad ru ple - double ▁against ▁Ces ar ▁Ch ave z ▁Academy ▁on ▁January ▁ 3 1 , ▁ 2 0 1 2 . ▁During ▁the ▁summer ▁of ▁ 2 0 1 2 , ▁Wal ton ' s ▁Riv als . com ▁ranking ▁increased ▁from ▁ 5 7 th ▁to ▁ 4 4 th ▁in ▁the ▁national ▁class ▁of ▁ 2 0 1 3 . ▁On ▁November ▁ 1 6 , ▁ 2 0 1 2 , ▁Michigan ▁men ' s ▁basketball ▁received ▁a ▁signed ▁National ▁Let ter ▁of ▁Intent ▁from ▁the ▁ ▁Wal ton . ▁At ▁Ch and ler ▁Park ▁Academy , ▁he