Subtract the ping scorefactor.

diff --git a/xonstat/elo.py b/xonstat/elo.py
index 60e7505d1d65135d2cd53d4032b804da01743c8c..0b9175276bf7c719f6bc1685bea8d245dc9d2aa8 100644 (file)
--- a/xonstat/elo.py
+++ b/xonstat/elo.py
@@ -221,7 +221,7 @@ class EloProcessor:
                 # adjust the elo prediction according to ping
                 ping_ratio = self.pingfactor(pi, pj)
                 scorefactor_ping = ep.latency_trend_factor * (0.5 - ping_ratio)
-                scorefactor_elo_adjusted = max(0.0, min(1.0, scorefactor_elo + scorefactor_ping))
+                scorefactor_elo_adjusted = max(0.0, min(1.0, scorefactor_elo - scorefactor_ping))
 
                 # initial adjustment values, which we may modify with additional rules
                 adjustmenti = scorefactor_real - scorefactor_elo_adjusted