 Pari gbolohun ti o tẹle: Porteous gba 2013 Amateur Championship nibi ti o ti ṣẹgun Toni Hakula, 6  5. Ìṣẹgun yìí fún un ní àyè láti wọ ìdíje 2013 Open Championship, : 2014 Masters Tournament, àti 2014 U.S. Open tí ó bá ní ipò amateur. Ó tún gba ife ẹyẹ Scottish Amateur Stroke Play Championship 2013 ó sì gba ipò kejì nínú ife ẹyẹ Welsh Strokeplay Championship 2013 