I love the Marathon Cup, but I have an issue with the format.
By seeding each round by score, you are basically gifting the higher ranked players the tournament. The early rounds they are getting cupcake matches and thus gaining a huge lead, while mid rank players slug it out. Each following round, they will continue to get the weakest players left.
In a few rounds, the high rankers will have an insurmountable lead, the low ranks will be eliminate, leaving midranked players in impossible uphill battle to climb.'
Not much of a fair tournament.