 Pari gbolohun yii: Stevenson jẹ aṣoju ile-iwe New Zealand ni ọdun 2014 ati pe o tun jẹ ọmọ ẹgbẹ ẹgbẹ New Zealand labẹ 20 ti o pari 5th ni : 2016 World Rugby Under 20 Championship níbi tí ó ti gba àmì ẹyẹ 5 tries nínú 4 appearances. 