"Experienced dice betting" laughed hard on this, you probably meant to say, someone who lost huge amount of money on dice betting.
Assuming that the outcomes generated are totally random, It's really easy to check what are the chances to get X amount of reds strike.
All you need is the house edge of the gambling site that you want to test, usually it's being revealed at the main page or can be calculated easily by checking the winning chances against the output you will receive.
To check what are the chances to get X amount of reds at X amount of tries, just multiply the amount of tries on the strike chances.
To calculate strike chances use this formula : X(Amount of red units in strike) ^(your winning chances)-HouseEdge*Profit.
For more info check this Wikipedia term that applies to your question:
https://en.wikipedia.org/wiki/Probability_axioms