Logically

"Welcome to the challenge round. You have all made it to the top four and should be proud," Minerva said lightly. "According to tradition, this challenge round wouldn't normally end in a ranking. Often, it was an arena to settle unresolved differences between Craftsmen from the round of debates, and also a method of exchanging treasures. 

"In order to accommodate a ranking, we will make some changes, the first of which is introducing a baseline of treasure. 

"Right now, the four of you have earned your top ten placement. As a reminder, this means that you all have earned the Mind Splitting Rune of the top 1000, the Spirit Elevating Force Herb of the top 100, and the Creation Grade Ore and Eighth Order Standard Blueprint of the top 10. 

"The lowest tier prize will represent one point, the second will represent three points, and the final two will represent five.