A plot of the Condorcet Probability with three candidates and 99 voters, in the border-line cases

This is a plot of the probability of A Condorcet scenario with three candidates and 99 voters where each voter picks independetly, the rankings 123,321 each with probability x, the rankings 213 and 312 each with probability y, and the rankings 132 and 231 each with probability 1/2-x-y,for x and y such that 0<=x,y and x+y<=1/2