Event: D&DCL Div 1

PDF Excel

Opponent	Rating	Result
Ralph MA Allen	1758	0 - 1
Ranjit Nath	1900	½ - ½
Alex Webster	1900	0 - 1
Alex Webster	1900	1 - 0
Derek A Jarvis	1900	1 - 0
Tomasz D Adamski	1720	1 - 0
David J Pickering	1758	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1948 = (12836 + 400 * (4 - 2)) / 7)