>>542777824
its not stam its track distance
Duration=BaseDuration*CourseDistance[m]/1000
for example this is cm4 golshi, track is 2200, so 2200/1000 = 2.2, then you do 6s (unique) x2.2 and you get 13.2s, and its not just uniques, you can see it also affect professor of curvature