Dhameystir weedha soo socota: Hanifin wuxuu ahaa inuu noqdo seddexda ugu sareysa ee loogu talagalay 2015 NHL Entry Draft, iyo difaaca ugu sarreeya ee la qiimeeyay. Waxaa lagu soo xulay kaalinta shanaad ee guud ahaan Carolina Hurricanes. Hanifin wuxuu u ciyaaray barnaamijka USA Hockey ee U17 oo fadhigiisu yahay Ann Arbor, Michigan, laakiin waxaa lagu daray kooxda qaranka ee U18 isagoo ah ciyaaryahan aan qaan gaarin, isagoo gacan ka geystay inuu hogaamiyo Kooxda USA oo ku guuleysatay billad dahab ah
2014 IIHF Horyaalka Adduunka ee U18. Wuxuu ahaa difaaca ugu sareeya ee Mareykanka ee tartanka isagoo leh hal gool iyo shan dhibcood. Kadib markii uu si dhakhso leh u qalin jabiyay dugsiga sare, Hanifin wuxuu iska diiwaan geliyey Boston College isagoo 17 jir ah, wuxuu u ciyaaray Eagles wuxuuna noqday ciyaaryahankii labaad ee ugu da'da yaraa taariikhda kooxda.