Following that display, Wallace secured himself a place in the 6 Nations squad and won one cap during the campaign, coming off the bench in the historic 43–13 defeat of England at Croke Park. Wallace continued to play for Ulster in the remaining Celtic League games however the Ulster team went through an end of season dip in form which saw them finish a disappointing 5th. Wallace did however, towards the end of the campaign, get some game time at out-half as opposed to in the centre.