10 pre_rating - this is what we have to initialize
13 From the tourney just completed:
14 tourn_wins, tourn_draws, tourn_losses
16 Post tourney stats: stuff that is saved.
17 post_wins, post_draws, post_losses, post_rating
21 tourn_expect = sigma(over all rounds) {1/[1+10^(delta/400)]}
22 delta = player_FICS_rating - opponent_FICS_rating
24 pre_expect = (pre_wins + 0.5*pre_draws)/pre_rating
26 post_wins = pre_wins + tourn_wins
27 post_draws = pre_draws + tourn_draws
28 post_losses = pre_losses + tourn_losses
30 post_rating = (post_wins + 0.5*post_draws)/(pre_expect + tourn_expect)
35 Ratings will tend to be near 1.0, and a typical range is 0.5 to 1.5.
36 Ratings are initialized based on your win percentage.
38 Questions, comments, suggestions?? contact mlong.
40 [Last modified: August 19, 1998 -- fpawn & mlong]