hatcojack:is it possible to access your all time match results with a specific player?
Looking at the title: Nope. A/S results are mentioned in the activity, one by one and disappearing at some time, and as a single summary in your stats.
Looking at the question: Maybe. Rated (one on one) Matchplay results are accumulated for each of your WGT friends. Others are only included in the tier totals.
Practice games' results aren't stored anywhere. This includes all "mobile" games.