Hi deko,
Stroke play wins and losses are not tallied. In Stroke Play you're just playing against the course with some playing partners, so even though it says you "won" there's no stat that actually tracks stroke play wins.
In match play wins and losses are tallied, but there's no award specifically for beating a master. The two awards regarding match play are "Total # of Wins" and "Match Play Points Earned This Month".
Your win total will increase by 1 no matter what tier player you play against. The points you earn for winning a match are decided by the tier of your opponent. The point distribution chart for Match Play can be found in the Match Play section of the FAQ.
Hope that answers both questions.