The T4 GPA is our equivalent of the golf handicap - a current snapshot of a player's grade capacity defined by a unified standard.
The golf HC is simple terms is determined by a large amount of data over a period of time. It allows players to track their progression by way of unified industry standard. When a golfer nails a hole-in-one, she isn't now pro golfer. In fact, it would have little effect on her handicap. It's fair and equitable and makes good sense.
The T4 League has followed suit.
It defines a set standard which is localised to each specific gym / location. Players record their best four scores over a 60 min period to define a round score just like golf does over 18 holes. A minimum of three rounds in the current season determine the player's Local GPA. Do this repeatedly over multiple seasons and you'll see a true reflection of where you're at by way of genuine capacity.
It's really just a system of integrity rather than guessing around the 'hardest grade you've done'. In golf terms - that's like hitting a hole-in-one and calling yourself a pro - and we all know that's just BS.