Unfortunately, there are some flaws in the course...
In the jumping sequences (grey, navy and white) The finalists can sometimes touch the jumping pads so hard that when they reach the checkpoint they fly off or dissapear.
Suggestions:
"Poop" could be renamed to Bronze
"Orange Red" could be renamed to Scarlet
"Coffee Red" could be renamed to Crisp or Blood
"Yellow Green" could be renamed to Neon or Neon Green
"Green Lime" could be renamed to Chartreuse
"Hot Pink" could be renamed to Rose
Peach could change its color to 30, 50, 100 if you want to.
Tan could also change its color to maybe 30, 50, 75.
Fern perhaps to 90, 100, 67.
Celeste could be changed to 180, 100, 50
Those are things i'd improve of the overall marbles.
Other then that, it's a solid race.