World Championship in Heroes of Might and Magic III.

I apologize, I don't participate here myself, but it's very strange to give the winner a +30% chance to win. It's unlikely that Alex and DeepMike need that. I've never heard of playing with such a handicap, except in one of Baev's tournaments, where RP players gave the same handicap to newcomers.

Let's imagine it with numbers: let's assume that the players who made it to the final are of the same level (it's the final after all). The chance of winning against the winner: 62.5% for the loser, 37.5%. And this is assuming that the loser's skill is still slightly lower.