Real-World Skill Levels: ELO

[malloyd]

Originally Posted by Anthony

If you break ties evenly, it's about 59%. 100 points of Elo is 0.35 standard deviations (assuming two normal curves each with standard deviation 200), 1 point of skill is about 0.24 standard deviations on 6d6, which means if you interpret a chess game as a single quick contest, 1 point of skill is about 70 Elo. If you want to flatten the numbers to more like common GURPS skill levels, treating a chess match as a best of 5 makes the ratio about 150.

So what's it look like for best of 40? That's about the number of moves each player makes in a typical rated game and one roll each time you make a move seems like both the level of resolution you'd want if you were trying for some combat system analog, and the upper limit for number of rolls you could reasonably call for in any case.