Initial simulation
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1 deck playing cards
3 dice, one distinct (e.g. two white, one red)
Tally sheet 

Shuffle 6 times
Deal to 5 stacks, 
Display stacks, photograph high res
Stack and place face down

Gold left, Silver right.

Repeat for Tally stepped by 1 (tally as silver track is run), stopping when 13 racers promoted to Finals:

  Repeat for each stack, working from Gold to Silver:
    Throw dice
    Repeat distinct die throw if not 1 thru 4.
    Display top four cards excluding the one represented by the distinct die on next stack
    If like dice total 2 (1 chance in 36): highest card finishes 3rd
    If like dice total 12 (1 chance in 36): lowest card finishes 1st
      (17 chances in 18 that cars finish "according to form".)
    Dispose cards:
      Speed: 
        Black aces will tie 1-2; 
        Red aces will tie 3-4;
        Black kings will tie 5-6; 
        Red kings will tie 7-8;
        ...
        Red 2's will tie 51-52.
      Cards move:
        Tally's 1 through 20 (Preliminary Racing): 
          1st: bottom of stack to left,
          2nd: bottom of this stack,
          3rd: bottom of stack to right.
        Tally's 21, ... (Finalist Selection):
          1st: bottom of stack to left,
          2nd: bottom of this stack,
          3rd: bottom of this stack.
      If Cars tie, they are treated the same, e.g. both promote if tie for first, both stay on track if tie for 2nd.

  If Tally is an even multiple of 5, display stacks and photograph high res.