Here is the answer for this question.
Number of xrb's you receive from payout is distributed equally based on number of claims per ranking which should be 17k xrb in total
If rank 1 has for example 5000 claims and rank 100 has 500 this means rank 1 will get 10x more then rank 100
(rank 1 in top 200 receives more then rank 2 , rank 2 receives more then rank 3 and so on) there is no fixed amount for payout it all depends on number of claims comparing to rank 1

Hope this helps and good luck.