I'm sure meepcraft will never implement this even if this is accepted but it's worth mentioning at least. I think the parkour rewards are really low, you can do all the parkour and only get 75k or so. That's assuming you can even beat some of the harder courses, according to meepcraft leaderboard only 8 or so people have even beat chillroom.
So, the reward is already kind of small, and you need to wait 7 days to even claim it again so I think either increase the reward for some of the courses, if not all, or decrease the cooldown to reclaim a prize.