Elaborating the mathematics.
If we assume the probability of Vitali winning on any given evening as the ratio of his 2 lost fights to the total of his 44 fights, that will yield 0.954 probability. Thereby he will accomplish his 11 wins streak with the probability of 0.599.
However, it would make more sense if we subtracted from his record the 13 fights against opponents who at that time had at least half as many defeats as wins in their record, because they clearly not represent the world title contender level. (Jose Ribalta or Julius Francis or Troy Roberts still contribute to his record). That would give us the probability of him winning equal to 0.935. Thereby he will accomplish his 11 wins streak with the probability of 0.480.
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