Algodoo

This is the first of two rejoin contests that will take place in Algoquadragintathlon!
Everything should be able to run on its own.
Use arrow keys to move around.
FOLLOW THESE IMPORTANT STEPS:
If you want to make a youtube video using this course, please give me credit.
and if you want to change the athlete colors, change the color of the athletes ON THE COURSE, also change their "_name" in the script menu
There are Three ending tubes:
The Overall 10 placers tube (Thats the one on the structure)
The Semifinal tube (Makes 5/10 marbles move forward)
The final 5 tube (The second tube after the semifinal tube)